Seeking help in acquiring dogbane or Indian hemp to help draw hummingbird moths.

Hello! I am looking for more folks who have plants or seeds of dogbane or Indian hemp to help attract hummingbird moths year after year. I've heard a lot of great benefits for Native American use of the plant since I have an ethnobotany garden. I've seen hummingbird moths a few times at my community gardens a couple of years ago. Please reach me if you all need me. Peace!

Dogbane is a common roadside wildflower around here. The blossoms attract lots of butterflies and moths. I am a bit cautious about introducing it into my garden though because it may spread and take over.

How we keep the plants from spreading to secure a balanced habitat?  How many of them we need in our gardens to reduce spreading?

I find that dogbane only inhabits poor or thin soil and doesn’t grow at all on rich soil, at least in the wild, so I wouldn’t be terribly afraid of them spreading, though if I lived near such poor soils I would appreciate it. There is a patch nearby with very nice tall stalks, beside a gravel driveway in the mountains and overhung by pines, that I have been gathering from for fiber, and so I have some seeds. It might be worth looking at a local wildflower seed company or dividing from a wild patch first. I have found it very hard to start wildflowers from seed. But if you can’t find any and you’re in a relatively similar climate so that they have a better chance of success, you can PM me about it—I should be able to send a few.

I hope your growing goes well!

https://www.illinoiswildflowers.info/prairie/plantx/dogbanex.htm
Illinois wildflowers website says dogbane can spread through rhizomes in moist area. If that's a concern, maybe someone can harvest the materials for fiber like Maieshe does.

I went by the area where the dogbane patch grows and took a picture.

In my garden this last season Dogbane was supporting a diverse population of flies, bees and wasps- before you go eeyew!, I'm talking tiny, 1/4 inch and smaller species known for eating pests (usually in the larval stage: watch "The Alien") So I'm keeping it around. You can tell the difference between Flies/Dipterans ("two wings) because unlike the Hymenopterans ("membrane-winged") they can fly backwards, due to the missing wings being modified into little "drumsticks" that balance things out with a counter-beat. Most of them were flashing black and yellow warning colors, even if they were "flying liars", or is that "lying fliers"? The seeds for dogbane are like tiny milkweed seeds- a close relative, and also have silk "parachutes" even though the pods are very skinny.

Blake, I can't help with the dogbane or hemp.  I've had hummingbird months for many years at my last place growing Moonflowers.

Hope this may help.

Peace