field bindweed

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These pretty little white flowers are field bindweed, Convolvulus arvensis, a Euro-Asian native that is one of the most hated crop pests in California. Like a tide of white-flecked green, bindweed is able to wash across agricultural fields in just one season, sending its twining stems out across the surface while sinking deep taproots far into the ground. Truly it is one of the nastiest invasives around here.

130501-0732At the extreme lower right of the above picture, the bindweed extends some shoots out across the sidewalk. As the ecodesigner of this garden, I frequently clip the “beard” of the bindweed as it reaches across the concrete walkways. I can certainly understand the farmers’ objections to this incredibly vigorous plant!

Almost all of the leaves in the first picture belong to the bindweed. There are some violet leaves near the top and  clover-like oxalis leaves near the bottom, between the two flowers. Directly below the lowest flower is another tiny shoot – can you see it? Can you identify it?

Bindweed is a nasty invasive indeed. But here in the deep nature garden, we do not recognize the word “weed.”

Properly managed, bindweed can be a beautiful component of a diverse, vibrant ecosystem, a healthy, contributing citizen along with many other kinds of plants. Bindweed adds beautiful morning-glory-like flowers, lush green leaves, and even attracts pollinators like the bee fly (not a bee – it’s a fly!) visiting the upper flower in the picture below.

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Do you have bindweed out of control in your garden? Here are three suggestions for management:

First, realize that no matter how fast a plant grows and no matter how deep its roots, you can move faster! If you feel like it is getting out of control, control it! Snip it down to the ground, repeatedly, every time you see it. You don’t even have to get the roots out, just keep snipping it. Seriously, eventually it will give up. If you want to get rid of it faster, dig out the roots. It’s up to you. If seedlings sprout up, pull them out too. But whatever you do, don’t spray nasty, refined chemicals!

Second, shade it. It likes full sun, so plant something above it that will provide shade. Then pull it out, repeatedly, as it tries to come back.

Third, limit it. I like bindweed, and I’m not afraid to let it grow in some places. But I do cut it back frequently. There are lots of plants I cut back, frequently. That’s part of being a deep nature gardener. But here’s an even better way to control and limit beautiful bindweed: contain it! Pull it out of the ground if you like, but why not plant a few shoots or seeds in a container, where it can flow out and over the edges, with its sweet flowers popping up all over the cascading stems. Lovely!

Bindweed in a container: perfect recipe for a beautiful but invasive alien vine that needs frequent management.

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