From Monoculture To Pollinator Picnic

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Bees adore oregano

Transforming Lawns Into Lunch

I’ve written a fair amount about how trading monoculture lawns for pollinator patches can fight climate change, help the environment, save water, and bring your yard to life, but there’s always more to say. Several readers asked for specific information about transforming lawns into pollinator smorgasbords and others requested a list of pollinator plants, so here you go. There are a number of good ways to do a lawn makeover, depending on your budget of time, energy, and money. The easiest way is to cause such work to be done by others, but most folks will find it most manageable to remove the lawn in stages. Start by exposing a strip or area of soil perhaps 3 x 3 feet, or 10 x 3, or as much as you feel you can reliably take care of. This is easier if there are two people available to help, as one person can cut or chop the turf roots with a flat-edged shovel (sharpen the shovel’s cutting edge with a bastard file) while the other person rolls up the turf in strips like a carpet. The turf pieces can then be stacked where another future pollinator bed will go. Layer the turf green-side-down, water the pile, then cover it with soil and/or a tarp and leave it to compost in place. In a year or less, you’ll have a nice heap of improved soil to use in your veggie patch or another new bed.

Most pollinator plants don’t need wonderful, rich soil, but they will definitely grow better and fill in faster if given a well prepared bed. To make bare, post-lawn soil more hospitable, scatter pelletized humic acid over it at the distribution rate suggested on the package. This is not fertilizer, but it’s a good soil conditioner, one of the active ingredients in compost that buffers soil Ph and improves soil texture and quality. Next, layer on several inches of top soil and another two inches of compost. If the soil is dry and hard (clay soils usually are in August), aerate the bed with a garden fork, just stepping on the fork to penetrate the soil but not actually lifting or disturbing it. Top this off with 1-2 inches of medium or fine grade wood chips (NOT bark), which will protect the soil from heat, drought and erosion. Water the whole business well at each step, wetting the soil to a depth of at least 2-3 inches. This will work best with a sprinkler if your bare patch is sizeable. Now you’re ready to plant!

What To Plant For Pollinators

There are plenty of lists of good pollinator plants (and I’ll offer a comprehensive one next week), but we can also make our own by observing where bees and other pollinators spend a lot of time in our own gardens and elsewhere. My bee visitors are busy from dawn to dusk, the buzz of their wings making a happy hum that tells me they’re well provided for. Hands down, the most constantly active sites are the many patches of oregano, including at least a dozen varieties that range in size from low growing mats to great sheaves of stems that can exceed a yard in length. Most oreganos keep on producing blossoms from mid spring into late autumn, making them a reliable source of nectar and pollen for a great variety of bees, hoverflies, butterflies and other little critters. Most of mine are forms of the mother of kitchen oreganos, Origanum vulgare. Native throughout Europe and the Mediterranean and into Asia, it’s been both a common culinary herb and a traditional medicinal plant for thousands of years.

Many of its forms and subspecies have been selected and preserved by gardeners and cooks and today, a little searching will introduce you to oreganos that offer a surprisingly wide range of tastes and textures. The straight species forms dense mounds of aromatic, deep green foliage, threaded in summer with soft purple flowers on slim stems up to 2 feet high. There are quite a few variegated forms of which Aureum Gold is is especially pretty in the spring, spreading in joyful splashes of clear lemony yellow. Golden Crinkled (O. vulgare crispum) is quite compact (to about 6”) and the quilted leaves are lovely in salads. Westacre Gold (O. vulgare variegata) boasts old gold foliage and rosy flowers on foot-high, copper-pink stems.

Kitchen Cousins

A tiny-leaved creeping oregano, Mini Compact (Origanum humile), has equally miniature flowers from spring into high summer. It makes 6-inch mounds that look at home in the rock garden and do well in kitchen garden containers, where its delicate sprigs can be gathered for tasty garnishes. As with any plant with so much variation and human history, there is some discussion about the legitimacy of various names. Some folks insist that Origanum compacta (or sometimes compactum) nana is the same plant as Origanum vulgare subsp. hirtum Humile are identical, though different nurseries sell quite different plants under each of these names. the same plant. I’ve ordered both plants from multiple nurseries and what I received were different plants.

The version I got as Greek Kaliteri (Origanum vulgare ssp. hirtum) has fuzzy silver leaves on rather open mounds, with tall bloom stalks. This one has amazing flavor, especially if grown a bit dry. It was imported from Greece, where it is a commercial crop for high-end herb sellers. Kaliteri means “the best” in Greek and I believe it! My form of Origanum vulgare ssp. hirtum is sold as Greek oregano, which it is, being a wild form collected from Greek mountainsides. Its smooth green leaves have an intense, spicy flavor that makes anything that includes tomatoes taste fabulous. There are also a number of lovely ornamental oreganos with reticulated bracts like fish scales, including Amethyst Falls, Bristol Cross and Kent Beauty, all pretty enough for front of the border placement.

More Garden Favorites

Hardy fuchsias are also wildly popular plants with scads of forms. I’m growing over a dozen different upright fuchsias, all of which are visited frequently by hummingbirds as well as many kinds of bees. All upright fuchsias are hardy to zone 6-7, and it’s fun to explore the range of smaller ones (12-24 inches), as they fit so nicely into pots and containers and can be tucked into odd corners and crannies in the garden. They all seem to be equally happy in sun or shade as long as they get a reasonable amount of water, and all are quite drought tolerant once established. There are always bees on the catmints as well, long blooming perennials in the mint family that produce an almost endless succession of flowers as long we we keep trimming off spent stems. Like oregano, catmint (Nepeta) has many forms of all sizes from Little Titch to Six Hills Giant.

Allowed to flower, almost any herb and vegetable will attract a pollinator following, from lavender, rosemary, cilantro, parsley and horehound to spinach, lettuce, kale, beans and beets. Santolina, an ornamental subshrub with fuzzy little ball blossoms, is equally bee-attractive in green or silver foliage forms, as are all single daisy-type flowers from calendulas and sunflowers to feverfew and rudbeckias. However, the Agastache clan may be the winner of the visited-by-the-greatest-variety-of-insects prize. Though not especially showy, this long blooming perennial is also called Hummingbird Mint for reasons that become obvious when it begins to bloom. Did I talk about salvias? Salvia elegans, or pineapple sage is another pollinator pleaser that also keeps the hummers happy… Ok, I’ll stop now but next week will offer you an extensive if not exhaustive list of pollinator plants.

bee video

 

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Natural Controls For Cabbage Whites

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Fun craft project with kiddos

Of Kale And Cabbage Butterflies

Cabbage Whites, Cabbage Moths, Cabbageworm, all are names for the very common (yet introduced) Cabbage White Butterfly (Pieris rapae). Under two inches wide, white or cream with distinctive black dots on their wings, Cabbage Whites thrive in my garden, fluttering amongst the flowers and swooping down to-uh oh, lay eggs on my kale, broccoli, and cauliflower. Since I grow many kinds of kale and other brassicas, any damage is spread between many plants. I never worry much about a few nibbled leaves and it doesn’t really bother me to discover a clutch of eggs on the underside of foliage. Extra protein, right? The caterpillars are not so easy to overlook, but it’s simple enough to pick them off. You definitely do want to pick them off your broccoli and cauliflower because the larvae poop stains cauliflower curds and broccoli buds, which is not appetizing.

This is a very dry year and a lot of little critters are finding good pickings in well watered gardens like mine. While I’m happy to host a constant haze of pollinators, I’m not so pleased that a LOT of Cabbage Whites are calling my garden home. Yes, they’re pretty and kinda charming as they swirl in their spiraling mating dances, but it’s getting to be a bit much. What to do? I recently heard about making Cabbage White decoys from paper or white plastic; they’re supposed to coax incoming females to move on, since the girls are thought to prefer less crowded places. After doing some research, I spent a happy afternoon making dozens of decoys and later got enthusiastic help from my grandkids as well. If you want to try your hand, here’s a good explanation:

http://goodseedco.net/blog/posts/cabbage-butterfly-decoy

Inserting cloth covered floral wires makes the butterflies flutter

However

As I did a little MORE research, I found a counter argument from a very reputable source debunking the idea that Cabbage Whites are actually territorial and challenging the usefulness of the decoys. Here’s the debunk:

MothBusters: Testing a Common Myth About a Small Butterfly

But Wait, There’s More!

The debunking experiment was limited and the professors admitted that there were too many variables to be sure that their findings were accurate or widely applicable. Meanwhile, there are zillions of posts from gardeners who swear by the decoys as well as quite a few from folks who don’t find them effective. I’m considering the issue to be unresolved and worthy of further investigation; after making all those decoys, I’m really curious to see what the effect, if any, looks like in my gardens. I have several plots about a quarter of a mile apart so I’m putting decoys in all of them and spending a little time each day observing butterfly behavior.

What To Watch For

Imported (probably accidentally) from England and Europe, the Cabbage White is by now a very common garden pest throughout North America. If you don’t want to give the decoys a try, Cabbage Whites are easiest to eliminate in the caterpillar stage by spraying foliage with organic controls like Bt (Bacillus thuringiensis) or Neem oil. Applying either substance once a week for 5-6 weeks will wipe out successive waves of emerging larvae, little green caterpillars that love to nestle in the heart of a head of cauliflower or broccoli. Neem works initially by smothering the eggs, little cream colored, barrel-shaped blobs laid in neat rows. It also smothers the caterpillars, while Bt works when the caterpillars eat foliage that’s been sprayed. Since these treatments also kill off other insects, including caterpillars on the way to becoming different butterflies, it’s best to apply them only to affected plants and only when there’s enough damage to warrant intervention.

In gardens where they find a happy home, Cabbage Whites overwinter as pupae, which look like lumpy, folded green leaves, usually attached to a stalk of kale or broccoli. By April, the butterflies emerge and start laying eggs, which hatch into larvae (caterpillars) in about a week. The caterpillars fatten up for another couple of weeks, then pupate on a host plant. The full cycle from egg to adult takes between 3 and 6 weeks, and there can be as many as five generations each year. By monitoring foliage weekly, checking leaf fronts for holes and backs for eggs, you can tell pretty quickly whether your garden will be lightly or severely infested. Commercial growers start to worry if they find 2 out of ten leaves affected, but they have to worry about half a dozen pests that can affect the appearance of their crop.

Or Let Them Be

Home gardeners may not feel that any intervention is needed except in unusual years when challenging conditions make for extra problems. If you are growing cabbage and don’t like finding cabbage “worms’ burrowing into the heads, try growing cooler season varieties that head up in early spring, before the first Cabbage White butterflies emerge. Cabbage varieties with the greatest resistance to Cabbage Whites include Chieftain Savoy, Mammoth Red Rock, and my favorite, super crinkly Savoy Perfection Drumhead.

Summery Cabbage Salad

I love fresh cabbage in salads but am not wild about the heavy, oily dressings usually used. This is a current favorite recipe combining cabbage and kale with cherry tomatoes, fresh basil, and a little mint. If you don’t like the flavor and crunch of raw cabbage as much as I do, give the raw greens a splash of vinegar and let them stand for 10 minutes before adding other ingredients; the vinegar will lightly “cook” the greens, making the texture softer and the flavor milder. Rice vinegar is especially gentle, while cider vinegar adds a more pungent brightness.

Crunchy Cabbage Salad

2 cups shredded green cabbage
2 cups kale cut in ribbons
Kernels trimmed from 1 ear sweet corn
1 cup halved cherry tomatoes (mixed kinds)
1/4 cup green onions, thinly sliced
1 quarter cup stemmed basil, chopped
1-2 tablespoons chopped mint (to taste)
1-2 tablespoons rice or cider vinegar
pinch of kosher or sea salt
few grinds black pepper

Combine all ingredients and gently toss. For a more mellow, less crunchy salad, let stand 5-10 minutes before serving. Serves 4.

 

 

 

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Lose The Lawn, Mitigate Climate Change

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Protecting pollinators nurtures life on the planet

Making The Best Of The Worst

Argh! Seems like every day brings more dire news about the environmental devastation climate change is causing. It makes me cry; sorrow for the planet feels like the deep grief we feel when dear people suffer or depart this world. It’s clearly just the beginning of the Bad Times, but there are also positive, hopeful signs as well. Among these is the excellent news that replacing water-guzzling lawns with pollinator-friendly gardens can make a significant difference to your neighborhood. We know that over 85% of flowering plants need to be pollinated by insects (as well as bats and birds) in order to produce the fruit and seeds that in turn provide about a quarter of the daily diet for native birds as well as other critters. Even if you simply reduce the lawn by half, improving the soil with compost and planting pollinator attracting natives and herbs, that can make a measurable difference to the number of pollinators, birds and butterflies that find shelter on your property.

Since most pollinator plants, including natives, need little or no supplemental water once established, that means your water use will be reduced. Since you are covering the bare soil with compost before planting, increasing carbon drawdown begins almost immediately. Since these plantings don’t need fertilizer, that means the water runoff from your property won’t be carrying excess nitrogen (or not as much, anyway) to local streams and waterways. Since you won’t need pesticides, the air won’t be carrying toxin drift to affect other plants, people, and critters. In fact, the air and water that pass through your property will be cleansed by the healthy plants. Swap the whole lawn and double the beneficial effects!

Nurturing Nature

Sadly, some folks do not feel comfortable in natural environments, preferring tidy, manicured parks over wild woodlands or naturalistic gardens. However, the more we learn about what pollinators, birds and other wildlife need to survive and thrive, our increasing understanding may help us find greater acceptance of the untidy. Indoors, tidiness is useful but outside, tidiness is death to the natural. It’s important to remember that Nature does not do tidy. We humans need to learn to look at the natural world through a naturalist lens instead of an industrialist viewpoint. Most folks find an intact forest more refreshing than a clearcut, yet far too many yards, landscapes, and gardens reflect the clearcut mindset over the naturalists’.

Barren stretches of lawn support nothing but cranefly larvae and moles, but a well planned pollinator meadow, however small, nurtures a remarkable number of insects, nearly all of which (over 95%) are beneficial or neutral in human terms. If you are devoted to your lawn, please consider leaving at least some verges in a more natural condition. A recent German study looked beyond the usual larger-scale investigations to focus on the scrappy bits of semi-wild vegetation often found along driveways and fence lines or behind sheds and outbuildings. Such spaces often host mixtures of native plants, weeds, and garden escapees that turn out to be home to a surprising abundance of beneficials, including many pollinators.

A Little Wild Goes A Longer Way Than We Thought

Because both native and common garden flowers tend to bloom between May and mid August, pollinators have to search much harder to find sources of pollen and nectar, especially in a dry year such as this one. Those random patches of mixed up plants can provide nourishment and shelter for birds and pollinators even when larger landscapes can’t. Queen Anne’s Lace (aka wild carrots) and goldenrod, fennel and dill, evening primroses and feverfew can knit together with sow thistles and spurges, clovers and purslane can make many a meal for the critters whose habitat is overtaken by so-called progress. “Researchers have already shown many times how important natural habitats are for pollinators. Almost always, however, only large-scale structures have been researched for this purpose, for example, wide meadows or pastures. Studies on what small structures mean for pollinators and which species particularly benefit from them are rare,” says Dr. Vivien von Königslöw from the Institute of Earth and Environmental Sciences at the University of Freiburg.

To learn how to promote a diversity of wild bees and hoverflies near commercial orchards, the researchers compared numbers of pollinators found in garden flower strips and in the wildflower-rich verges of commercial apple orchards in southern Germany. While specialist bee species depend on specific types of pollen, opportunistic bees such as honey bees will take pollen and nectar wherever they can find it. Thus, a wide range of pollinators were observed feeding both in garden strips and in semi-natural habitats such as hedgerows and road verges. As the wilder areas dried out, the cultivated garden strips gained more pollinators. Both are clearly important to pollinator survival, especially since the wilder areas offer shelter and nesting sites for overwintering bumblebees and butterflies.

Surprise! Semi-Natural Habitats Attract Pollinators

“Semi-natural habitat patches can play an important role in protecting pollinators because they help ensure that flowers are available all season,” says Dr. Alexandra-Maria Klein, head of the Chair of Nature Conservation and Landscape Ecology at the University of Freiburg. “For effective and cost-efficient protection of pollinating insects, the focus should not only be on flower strips,” Klein concludes. “Existing small structures of spontaneous vegetation, plant species that grow on their own from existing seeds in the soil, are also attractive to insects and should be preserved.”

What that boils down to is that instead of worrying about weed control, we must ask which weeds are valuable for native pollinators, and find places to let them be. That way, all of us with any land at all at our disposal can help develop and preserve at least a few small semi-natural habitat patches. Right?

Natural Refreshment

For summery refreshment, here’s our current recipe for herbed lemonade, a bracing blend of fresh herbs and lemon (or lime) juice that’s delightful mixed with sparkling or plain cold water.

Rosemary Mint Lemonade

2 cups water
1 cup cane sugar
1 cup rosemary twigs (loosely packed)
1 cup spearmint twigs (loosely packed)
1 cup fresh lemon or lime juice (or bottled)

Bring water and sugar to a boil and stir until sugar is dissolved. Remove from heat and add rosemary twigs. Cover and let steep for 30 minutes, strain and add mint leaves. Steep for 5-10 minutes, strain, add lemon juice to taste and chill in a sealed glass jar. Dilute to taste with plain or sparkling water. Makes about 2 cups concentrate.

 

 

 

Posted in Birds In The Garden, Care & Feeding, Climate Change, Garden Design, Gardening With Children, Health & Wellbeing, Native Plants, Plant Diversity, Plant Partnerships, Pollination Gardens, Pollinators, Recipes, Soil, Sustainable Gardening, Sustainable Living, Vegan Recipes, Weed Control | Tagged , , | 2 Comments

When In Drought, Make Herb Salts

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Genovese basil salt tastes fabulous

Helping Pollinators Through Dry Summers

My bee keeper friend Charles showed me a picture of his bees during our recent heat dome event. Except for a few guards left to mind the glass-sided hive, hundreds of bees were heaped in a panting pile by the entrance to the hive, trying to get a little cooler. They survived, thanks to shade Charles was able to provide, but he said that in dry, hot summers like this, bees and other pollinators struggle to find enough nectar and pollen. In the woods and meadows, very little is still blooming as native plants show signs of drought stress. Many gardens are similarly parched and it can be challenging to keep plants growing well. We know such times are likely to become more common, even here in the maritime Northwest. The wise gardener will think carefully before planting water hog prima donna plants, and tend garden soil carefully too.

My own gardens are abuzz with pollinators even before the sun is up. That’s largely because I’m growing a curated mixture of herbs and annual flowers in each location, notably oreganos of every kind I can find. When other plants turn crisp, oregano and other hardy Mediterranean herbs flourish, relishing the sun’s warmth. Dry soils encourage herbs to concentrate the essential oils that build both flavor and health benefits in our kitchen herbs. However, young plants and new transplants are more vulnerable to heat and drought, so watch them closely and supply moisture as needed. Fall and early winter are the best times to plant hardy herbs, since winter rains supply water for free. Or so they have; even the endless Northwestern rains have been arriving later and leaving sooner than usual and that pattern too is likely to become more common.

Pick Them At Their Peak

Hardy herbs are as welcome in our kitchens as they are to hungry pollinators. If harvested and dried or frozen at their peak, home grown herbs will have more flavor than store bought ones, but can quickly grow stale in warm, humid kitchens. This is a good time to harvest garden herbs and purge their kitchen cousins. Give older dried herbs the sniff test, toss any that lack savor on the compost heap and wash out the containers thoroughly.

To preserve the goodness of both fresh and dried herbs, freeze small amounts in tightly sealed containers. Keep just a tablespoon or so in the herb rack, refreshing supplies as needed from the freezer. Herbs and spices last longest when stored in small glass jars with tight fitting lids, since glass protects flavor and quality better than plastic. This is especially important if your herb and spice rack is near the stovetop, where it’s convenient but exposed to flavor-degrading heat and moisture.

Morning Harvest

For fullest flavor, harvest fresh herbs in the morning while the foliage is still refreshed by dew. Ideally, you’ll want to gather leafy herbs from unflowered stems, as blossoming changes the chemical composition and therefore the flavor, and not for the better. For soft, leafy herbs such as basil, chervil, chives, mint, oregano, and parsley, trim up to half the length of the stems each time you harvest. They’ll grow back quickly and can be gathered again every few weeks. Only rinse herbs if they are dirty (unusual), as immersion in water can dilute the essential oils.

Dry fresh herbs in a single layer on bakers’ cooling racks over clean newspaper in a warm, dry place out of direct light (attics are great). When crisp, freeze most and store the rest in labeled, tightly sealed glass containers, NOT a sunny windowsill, as sunlight and heat degrade essential oils). To keep dried herbs potent for months, freeze in double containers (sealed glass jars tucked inside plastic boxes works well without flavor loss or contamination).

Making Herb Salts

High summer is a perfect time to make herb salt blends, filling pretty glass shaker jars for holiday gifts. Once they’re baked and re-ground (see below), herb salts are shelf-stable for up to a year (sometimes more). If you’ve tried herb salt blends, you’ll have some ideas about which combinations you prefer. However, the more moisture is introduced from fresh foliage, petals, grated citrus rind, garlic or shallots, the more important it is to process salt blends properly. These days I’m using up to a 1:1 ratio of fresh ingredients to kosher salt, grinding everything together, spreading the salt in a flat layer in a rimmed baking sheet to bake. When baked enough, the salt will get crusty and form crisp sheets that must be broken up and re-ground before you can pour it into jars or shakers.

Herb Salt Sampler

Our house salt is this basil salt, vivid green and redolent of summer even in January. I usually make it with Genovese basil, including the Everleaf Genovese variety. It’s definitely performing as advertised, still growing strongly without blooming when other basils have been blooming for over a month and tastes fantastic.

Supreme Basil Salt

1 cup lightly packed chopped basil foliage and stems
1 cup kosher or coarse sea salt

Preheat oven to 225 degrees F. In a food processor, grind salt and basil to a paste, then spread with a spatula into a flat layer in a rimmed baking sheet to bake. Bake until a crisp sheet forms (it will shatter when nudged with a metal spatula), about 15-20 minutes. Cool, then break up the pieces and re-grind to fine grains and pour it into glass jars or shakers. Makes about 1-1/4 cups.

Lemon Garlic Salt

1-1/2 cup kosher or coarse sea salt
1/4 cup chopped fresh garlic cloves
Finely grated zest of 2 organic lemons

Preheat oven to 225 degrees F. In a food processor, grind all ingredients to a paste, then spread with a spatula into a flat layer in a rimmed baking sheet to bake. Bake until a crisp sheet forms (it will shatter when nudged with a metal spatula), about 15-20 minutes. Cool, then break up the pieces and re-grind to fine grains and pour it into glass jars or shakers. Makes about 1-1/2 cups.

 

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