Behind the ScenesWhat We’re Growing Now (And What’s Coming Next)

Owner, Schlegel Greenhouse · June 4, 2026
Spring may be winding down. But the next season is already starting.
What We’re Doing Right Now
Sowing:
- ✓ Zinnias
- ✓ Marigolds
Propagating:
- ✓ Monarch Magic Ageratum
- ✓ SuperCal Petchoas
Potting:
- ✓ First round of garden mums
These crops will form the backbone of late-summer and fall color at the garden centers we supply.
Coming Soon: Sunbeckia
One of the breeding breakthroughs I’ve been most excited about is Sunbeckia — a new generation of rudbeckia bred for genuine garden performance.
Features:
- ✓ Huge flowers (larger than traditional rudbeckia)
- ✓ Real heat tolerance
- ✓ Long bloom window from summer right into fall
- ✓ Excellent landscape performance — the plants stay tidy and productive
Expected at retail: early August.
What Happened to Shade Mums?
Years ago, growers sold mums in early August by using a technique called shading — artificially exposing plants to shorter days earlier in the season.
Mums are triggered to flower by long nights. By reducing light exposure with black-cloth tents, growers can convince the plants that autumn is arriving earlier than it actually is. The result: earlier-flowering mums.
The practice still exists, but customer demand has shifted toward more traditional late-August and September timing — so most growers, including us, have scaled the shading back.
The Real Takeaway
The flowers may be sold. But greenhouse production never really stops. Right now, the work happening here is what will become your fall color in 8–10 weeks.
Hoosier Tip
When mums hit the garden center in late August, look for plants showing color but not yet wide open — same rule as dahlias. A mum already in full bloom at purchase has a shorter shelf life than one just cracking color. The buds in waiting are what carry you through October.
Reference: Purdue University Extension, Penn State Extension, Ball Seed industry reports — Indiana gardening resources
