I've planted a Desert Willow that I bought from a nursery...

Menifee, CA(Zone 9a)

I chose it in part for its shape, its flowers & the fact that they attract hummingbirds, and, the fact that birds like its seeds... So,

I am wanting to know how close another Desert Willow needs to be for it to become pollinated (as these trees are not self-pollinating)?

I also more recently read that there are cultivars which are seedless, and am now wondering if one of those might be what I have planted...?

It didn't have any cultivar name on it when purchased, though, just "Desert Willow" &/or "Chilopsis linearis" (I forget which).

Chilopsis linearis (Burgundy Desert Willow):

Thumbnail by 2QandLearn
Dublin, CA(Zone 9a)

If it was just labeled as desert willow or the Latin name there's a good chance it's just the straight species.

As far as distance between trees, I believe they're primarily pollinated by bees so your other plant wouldn't necessarily have to be super close, although the closer it is the more the odds are improved that the same bee would visit both trees so if you want to guarantee you get seeds I'd plant them near each other.

Beautiful, BC(Zone 8b)

The 'Burgundy' cultivar seems to get seeds as well. Noticed this site: http://www.mortellaros.com/index.cfm?fuseaction=plants.plantdetail&plant_id=6 which comments on the seed pods.
PF: http://davesgarden.com/guides/pf/go/79000/

Menifee, CA(Zone 9a)

I *certainly hope* that it *will* bear seeds!

This site says that it is "possibly self-sterile" and calls it "Burgandy Lace" :

And the nearest trees I know of are 3 blocks over, and, judging by their flower color, they may be the same cultivar!

So, I may have to get another Chilopsis that has *different-colored* flowers to *hopefully* ensure pollination. /:

We don't have a lot of room for trees, though, due to our leach line running nearly the length of our heavy-clay-soiled lot... and this tree needing good drainage...

Dublin, CA(Zone 9a)

From your picture above, I don't believe yours is 'Burgundy Lace', it has two-tone flowers and yours appear to be one color?

Menifee, CA(Zone 9a)

That last site also says about 'Burgandy Lace' . . .

"Two-toned white and pink to magenta flowers; (See photo on Page 4)

Dublin, CA(Zone 9a)

Yes...I didn't see the white on yours. Maybe it's just the angle of the photo though, since you have the actual plant I'll take your word for it if you tell me your flowers are two-toned :)

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