Try some Allium bulbs, tho they needed to be planted in the Fall.....

I hope you're still checking back for replies to your question. While I am no longer a flower farmer, here are some suggestions:

Snaps in your greenhouse as you mentioned.

Ranuculus can be planted in your greenhouse now.

Lilies planted in bulb crates.

Calla lilies planted in crates.

You can also plant precooled tulips and daffodil bulbs in crates.

Campanula ordered in as plugs.

You could also try the dianthus and larkspur as mentioned.

Plant some of the border glad bulbs. They bloom earlier.
Customers will purchase these in bunches. Also, acidanthera.

Lisianthus ordered in as plugs and grown in the greenhouse.

Karma dahlias from plugs, planted in the greenhouse in April, will bloom in June.

Yarrow plants will bloom in late May/early June with the added benefit they spread.....meaning more plants.

Wishing you a great growing season.

Thanks for the suggestions!

Hey Trish, it's great to see a post from you. I hope retired, or semi-retired, life is agreeing with you and you are feeling strong.

TM

@ Thinman, I've been trying, without ANY success to find a source for miniature flowered gladioli. Any suggestions would be appreciated.

Thinman: There will always be a cutting garden in my life!

Grannymarsh: Fred Nagel & Sons, 269-279-2379, email nagels@myrural.com. They have a nice catalog. They refer to the miniature glads as border glads. Available in bulk. Michigan grown! Netherland Bulb also has them. Acidanthera is also nice. Faint sweet smell. Market customers love this.

Grannymarsh - K. Van Bourgondien has something called Glamini Gladiolus that are said to be 24 - 25 " tall at $40 per 100 or $298 per 1000 for 10-12 cm corms. On the web they are www.kvbwholesale.com. I saw the listing in their catalog, but haven't tried them.

TM

@thinman, thanks so much !! Fred Nagel & Sons has a website, and it looks like they have exactly what I need.
marsh

Here is a link that might be useful: Noweta