Dinner wouldn’t be nearly as delicious without plants from the Allium genus. Ornamental Alliums also attract beneficial insects to your garden.
Attracting beneficial insects
Planting Allium in the garden is sure to attract beneficial insects. The convenient landing platform and sweet nectar will bring them in from blocks or even miles around. Allium tanguticum, the Lavender globe lily (pictured), attracts hoverflies. These beneficials look like tiny bees and they devour aphids and mealybugs. Spritely black Trichogramma wasps are also attracted and will lay their eggs in moth eggs, preventing caterpillars, such as the tomato hornworm from attacking your garden. If you enjoy the flavor of garlic and chives, you can always plant Garlic Chives (Allium tuberosum) another favorite of beneficial insects.
How to grow alliums
These shallow-rooted plants prefer soil that holds a lot of organic material and that means adding compost before planting. They will grow just about anywhere, but our heavy clay soil can slow growth. Allium can be grown in partial shade to full sun. Alliums grow well in raised beds and containers. You can grow chives in a pot on your kitchen windowsill for easy access while cooking!
Growing Allium from seed can be hit and miss. The plants are slow starters and they don’t handle competition (weeds) very well. You can plant seeds in containers or directly in the garden. Seeds should be sown 1/2” deep and 1/2” apart. Thinned plants can be eaten as scallions.
Another way to plant Allium is in the form of “sets”. Allium sets are mature bulbs that can be planted directly in the ground or a container. Follow the package directions for depth and spacing. The only downside to sets is that they tend to bolt. Bolting is the beginning of the going-to-seed process. If you are growing onions, leeks, or garlic, plants that have started bolting should be harvested right away, unless you plan to collect your own seeds.
Garlic and onions are best planted October through January.
You can grow a surprising amount of food in your own yard. Ask me how!
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