Jiffy Seed Starter Greenhouse with SUPERthrive - 72-Cell, 36mm Pellets

72-Cell Peat Pellet Seed Starter Kit with SUPERthrive & Markers, 36mm Pellets

Starting a large batch of herb, flower, and vegetable seedlings at once means either juggling several small trays or finding one kit sized for the whole job. Jiffy's 72-cell kit packs that many 36mm peat pellets into a single watertight tray with a humidity dome, plus a bonus SUPERthrive sample and plant markers to keep a crowded tray organized.

The included plant markers matter most at this scale, since a 72-cell tray commonly holds several different varieties at once and it's easy to lose track of what's planted where without labels.

Key Features & Benefits

• 72 biodegradable 36mm peat pellets — compressed peat that expands with water into individual growing cells.
• Full-size tray built for all 72 cells — supports bottom-watering the entire tray at once without overflow.
• Bonus SUPERthrive sample and plant markers — a root-development boost plus labels for keeping a crowded tray organized.
• Netting engineered to break down after planting — move each pellet into the garden with its seedling intact, roots undisturbed.

Who Should Use This

This fits home gardeners and hobbyist growers starting a large batch of herb, flower, or vegetable seedlings at once, especially when several varieties need to stay labeled and organized in a single tray.

About Jiffy

Jiffy, under Green Garden Products, scales its direct-transplant pellet system from small windowsill kits up to full 72-cell trays for growers starting seedlings at volume. The expand-with-water, plant-the-whole-pellet approach stays the same across every size in the lineup.

Frequently Asked Questions

How do I use this 72-cell kit

Set the pellets into the tray, add warm water, and let them fully expand before sowing seeds into the top of each pellet. Label varieties with the included plant markers so a crowded 72-cell tray stays organized, and replace the dome until seedlings emerge.

When should I apply the SUPERthrive sample

Follow the dilution instructions on the SUPERthrive sample packet and apply it as part of your first watering after sowing, or once seedlings show their first true leaves. It's a vitamin supplement, not a replacement for regular watering or feeding.

Why does this kit include plant markers

A 72-cell tray often holds several different varieties at once, and markers keep track of what's planted where until seedlings are distinct enough to tell apart on sight. That's especially useful when starting multiple herb or vegetable types in the same tray.

Can I transplant the pellet directly into soil

Yes, the netting is biodegradable and breaks down once it's buried. Set the whole pellet into the ground with the seedling so roots keep growing without any transplant shock.