I grew this vine two years and each year the vine was very vigorous,almost climbed over the house one year but I never got a bloom. I received some in a trade this year, but did not get around to sowing them, so it will be interesting to see if anyone has ever had it bloom. I have had morning glory and nasturtium bloom there since, so I wonder if it needs special soil.
Northerner.

Even here in my zone 7b/8a it is a late bloomer - mid-August or later. I have buds setting now but even then it seems forever before it will bloom but it is worth the wait. All September through till a killing frost my back porch is just enveloped with the nightly scent. I don't do anything special to the soil - in fact they get little to no fertilizer -

last year late September
{{gwi:429809}}

back landing
{{gwi:429810}}

I have found patience is the key for moonflower vine.....

Lynne

Nice pics! I like it growing on the landing. I'll just let it take over the porch and wait!

I did them a couple of years ago. They grew like crazy but didn't bloom until late Aug or early Sept. By then the vine was looking burned and nasty.

Not something I'd grow again. Flowers too late for an annual in my book.

Karen

I grew them once. They didn't get their first blooms until September and were at their peak in late September when it was too chilly at night to sit outside and enjoy them. Patience is fine if you have a long growing season--I don't so I didn't bother with them again.