Jiffy Peat Pellet Refill Pack - 42mm - 25ct

42mm Peat Pellet Refills for Jiffy Windowsill & Professional Greenhouses

Restocking peat pellets between plantings shouldn't mean waiting on a full new greenhouse kit. Jiffy sells its 42mm peat pellets on their own, so growers who already own a compatible Jiffy tray can refill exactly the pellet size that system uses.

This 25-count pack restocks a 10-cell Jiffy Windowsill Greenhouse or a 25- or 50-cell Jiffy Professional Greenhouse, giving home gardeners and hobbyist growers a way to start new batches of seedlings without repurchasing trays and domes they already have.

Key Features & Benefits

• Loose 42mm peat pellets — no tray or dome included, sized to restock compatible Jiffy systems.
• Expands with warm water — the same compressed peat mechanism used in Jiffy's complete kits.
• Direct-transplant netting — the whole expanded pellet goes into soil with the seedling.
• 25-count refill size — restocks a 10-cell Windowsill or 25/50-cell Professional Greenhouse.

Who Should Use This

This fits growers who already own a compatible Jiffy tray-and-dome system and need to top up on 42mm pellets, whether that's a single windowsill tray or a couple of Professional Greenhouse kits running in rotation.

About Jiffy

Jiffy, part of Green Garden Products, built its reputation on the Jiffypot, a biodegradable peat pot that transplants straight into the garden. The same peat composition and direct-transplant netting used in Jiffy's pots and complete kits carries over into these standalone pellet refills.

Frequently Asked Questions

How do I refill my Jiffy greenhouse with these pellets

Drop the loose pellets into your existing tray, add warm water, and let them expand fully before sowing seeds into the top of each one. The process is identical to pellets that ship inside a complete Jiffy kit.

Which Jiffy greenhouses take a 42mm pellet

42mm pellets fit the 10-cell Jiffy Windowsill Greenhouse as well as the 25- and 50-cell Jiffy Professional Greenhouse trays. Check your tray's cell size before ordering, since Jiffy also sells 36mm and 50mm pellets for other tray models.

When should I order a refill pack instead of a new kit

Order a refill once your tray and humidity dome are still in good condition and only the pellets are used up. A new complete kit only makes sense if the tray itself is damaged or you're setting up an additional greenhouse.

Can the expanded pellet go directly into garden soil

Yes, the biodegradable netting breaks down in moist soil, so the whole pellet transplants with the seedling and roots continue growing undisturbed. That's the same direct-transplant design used across Jiffy's pellet and pot products.