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Double-duty herbs are great in the garden

Grow some for you, some for the beneficial insects

Sacramento Digs Gardening
BY Kathy Morrison PUBLISHED MAR 11, 2021

Rosemary is flowering now. The herb is super for

cooking all kinds of dishes. The sturdy stems also

are great to use for barbecuing meat

or vegetable kebabs. (Photo: Kathy Morrison)

While planting that spring and summer garden, don't forget to tuck some herbs in and around the vegetables and annuals.

The best herbs to grow, I believe, are the ones I think of as "double-duty" plants. They can be used in cooking and teas, but they also serve as enticements for beneficial insects.

"Beneficials" include some pollinators, such as bees, but they also include good bugs that fight the nasty ones. These include lady beetles, hoverflies, damsel bugs, green lacewings and parasitic mini wasps. (There's a full UCCE master gardener Garden Note just on beneficial insects .)

My focus here is the herbs to plant now, before the weather warms up and the bad bugs go to town on your young plants. Other than basil, which grows easily from seeds, I've found that transplants work best when starting these herbs.

Two important notes:

-- You have to let some of the herbs flower. The insects want the pollen and nectar from the blooms, though flowering ("bolting") turns some herbs bitter and unusable in cooking. Decide which plants will be for the insects and which ones for your use -- say, two varieties of basil for the bees, one Genovese basil for your pizzas and pesto.

-- Though this is unlikely if you're planning to consume the herbs yourself, pesticide use is not recommended on the plants. All the insects, good and bad, could be killed. Use a blast of water on the plant if the aphids get too thick. Otherwise, let the lady beetle and her buddies handle the job.

Top double-duty herbs:

Basil -- Ocimum basilicum . One of the easiest herbs to grow in our climate. Some of the purple basil varieties are especially good for attracting beneficials.

Borage -- Borago officinalis. This tough little herb has blue flowers and blooms all season. The leaves and the flowers are edible. Blogger and cookbook author Hank Shaw has a great post about cooking with borage .

Chamomile -- Anthemis tinctoria . Darling little white flowers, and a popular plant for making tea.

Cilantro -- Coriandrum sativum. Around Sacramento, cilantro tends to bolt as soon as the weather warms. So let it. Many beneficials will love the little flowers.

Dill -- Anethum graveolens. This herb often gets planted near tomatoes. It also bolts in hot weather, so let it, and feed lacewings, parasitic mini-wasps and lady beetles.

Fennel -- Feniculum vulgare . The pollen is a gourmet cook's delight. Insects like it, too.

Lavender -- Lavandula ssp . Many varieties available, and one of the best bee magnets in early spring. In cooking, it's great for flavoring things like cookies, jam and lemonade.

Mint -- Mentha ssp. This is actually a large plant family, but "mint" tends to refer to peppermint and spearmint. Many flavoring mints are invasive, though, so keep them in a container.

Rosemary -- Rosmarinus officinalis . Another easy-to-grow herb in our area, it's a great cooking and barbecuing herb. It flowers in spring; my bush is covered with periwinkle-color blooms right now.

Sage -- Salvia ssp . This family as a whole is great in our region. Look for the culinary sage; its flowers aren't as showy as some of its relatives, but it is quite hardy.

Thyme -- Thymus vulgaris . Good for sunny, dry soils. Lacewings, hoverflies and lady beetles all like this.

For more information on herbs, see this list of culinary herb profiles and other Sacramento County master gardener resources . For more on attracting beneficials, see this post at farmerfred.com.

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Keywords:

UCCE master gardeners Sacramento basil cooking lavender spring planting insects Mediterranean climate gardening bees herbs beneficial insects pollinators

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Garden checklist for week of May 17

With an eye on warmer weather to come, continue to work on the summer vegetable garden:

* Remember to irrigate your tender transplants. The wind can quickly dry out young plants. Seedlings need consistent moisture. Deep watering will help build strong roots and healthy plants. Water early in the morning for best results.

* Plant, plant, plant! It’s prime planting season in the Sacramento area. Time to set out those tomato transplants along with peppers and eggplants. Pinch off any flowers on new transplants to make them concentrate on establishing roots instead of setting premature fruit.

* Direct-seed melons, cucumbers, summer squash, corn, radishes, pumpkins and annual herbs such as basil.

* Harvest lettuce, peas and green onions.

* In the flower garden, direct-seed sunflowers, cosmos, salvia, zinnias, marigolds, celosia and asters. (You also can transplant seedlings for many of the same flowers.)

* Plant dahlia tubers.

* Transplant petunias, marigolds and perennial flowers such as astilbe, calibrachoa, columbine, coneflowers, coreopsis, rudbeckia and verbena.

* Keep an eye out for slugs, snails, earwigs and aphids that want to dine on tender new growth.

* Feed summer bloomers with a balanced fertilizer.

* For continued bloom, cut off spent flowers on roses as well as other flowering plants.

* Put your veggie garden on a regular diet. Set up a monthly feeding program, and keep track on your calendar. Make sure to water your garden before applying any fertilizer to prevent “burning” your plants.

* As spring-flowering shrubs finish blooming, give them a little pruning to shape them, removing old and dead wood. Lightly trim azaleas, fuchsias and marguerites for bushier plants.

* Don’t forget to weed! Those invaders are growing fast.

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