Your Cut Flower Seedling Guide — From Our Farm to Your Garden
Rachel HessYou just picked up something really special.
These seedlings were started by hand, right here on our farm. They’ve had a good start — and with a little attention over the next week or two, they’re going to reward you with one of the most beautiful cutting gardens you’ve ever grown.
Here’s everything you need to know to get them there.
First: The Hardening Off Process
Before anything goes in the ground, your seedlings need a few days to adjust to the outside world. This is called hardening off, and it’s the step most people skip — and the reason most transplants struggle.
Here’s what to do:
Start by keeping them somewhere with dappled shade — a covered deck, under a tree, or on the north side of your house works great. Avoid direct sun for the first few days. Each day, gradually give them a little more sun exposure.
They can stay outside overnight. The temperatures this time of year won’t hurt them.
Plan to harden off for about one full week before transplanting to their final spot. This gives you time to prep your garden bed — and if you grabbed a bag of worm castings from our farm stand, now is the perfect time to work those into your soil before you plant. Your seedlings will thank you.
Zinnias — Specialty Pastel Mix
Cut and come again
Varieties in your mix:
These are some of the most rewarding cut flowers you can grow. The more you cut, the more they bloom — all season long.
Spacing: 6–9 inches apart, offset planting pattern (stagger each row so plants sit in the gaps between the row in front — this improves airflow and fits more plants in the same space)
Sun: Full sun, 6–8 hours minimum
Water: I use t-post sprinklers and overhead water. If you prefer, you can use drip irrigation tubing at the base.
Pro tip: Don’t let spent blooms sit on the plant. Deadhead consistently and you’ll have continuous blooms from now through frost.
Mystery Dahlias
Cut and come again
Here’s the fun part — we genuinely don’t know what you’re going to get. These are seed-grown dahlias, which means every single plant is a one-of-a-kind original. The color, the form, the size — it’s all a surprise until that first bloom opens.
I think that’s the best kind of gardening.
Spacing: 12 inches apart — dahlias need airflow, so give them room. Offset planting pattern recommended.
Sun: Full sun
Water: Deep and infrequent. They don’t like wet feet.
Maintenance: Pinch at 12 inches. When your plant reaches about a foot tall, pinch out the top growing tip. It feels wrong. Do it anyway. It tells the plant to branch out and make more stems — which means more blooms all season.
Stakes or support netting are a good idea once they start getting tall. Put them in early, not after the plant falls over. (Ask me how I learned that one.)
Pro Cut Sunflowers
One and done — but absolutely worth it
Varieties in your mix:
A word of honesty about these sunflowers: once you cut the bloom, that stem is done. ProCut Sunflowers are not cut-and-come-again. Each plant produces one main flower and that’s it. They’re bred specifically for bouquets.
But here’s the good news — we grow sunflowers in successions all season long so that there’s never a lapse in blooms. If you want sunflowers on your table from now through the end of October, you can count on us to have them. Stop by the farm stand, catch us at a pop-up, or keep an eye on our weekly restock announcements.
Spacing: 6–9 inches apart, offset pattern
Sun: Full sun — the more the better
Water: Regular, at the base
Maintenance: These grow fast. You’ll be amazed how quickly they go from seedling to towering stem (50-60 days). Stake them if you’re in a windy spot.
Celosia
Cut and come again
Celosia is one of those flowers that makes people stop and stare. The blooms are unlike anything else in the garden — velvety, sculptural, and they hold up incredibly well in arrangements and even dried. In our cut flower collection is a sunset mix called Shimmer that you will love!
Spacing: 6–9 inches apart, offset pattern.
Sun: Full sun
Water: Regular, consistent moisture — but well-draining soil is key
Maintenance: Heat lover. Celosia actually thrives once the summer heat kicks in. If it seems slow at first, be patient. It’s coming.
Cut regularly to encourage branching and more blooms. Like zinnias, the more you harvest, the more it gives.
A Few Universal Tips for All of These
Worm castings at transplant time are one of the best things you can give a new seedling. Work them into the planting hole before you put your plant in. They’re gentle, organic, and give roots a real boost right when they need it most.
We carry 5 lb bags from Woodland Worm Co. in Pennsylvania at our farm stand — a small business we genuinely love.
Offset planting for everything. Instead of straight rows, stagger each plant so it sits in the gap between the two in front of it. More plants per space, better airflow, healthier beds.
The cut-and-come-again flowers — zinnias, dahlias, and celosia — will bloom more the more you cut them. Don’t be shy. Bring them inside. That’s what they’re for.
Stay Connected All Season
We’ll be sharing updates from the farm, harvest announcements, pop-up locations, and growing tips all season long.
Questions about your seedlings? Send us a message anytime. We love hearing how your gardens grow and are here to help!
