Description
The Jiffy Plant Tray is the industry-standard 11" × 22" (1020) black plastic seed-starting tray — the workhorse base that every other seed-starting accessory is sized to fit. Drop in peat pellets, peat pots, plastic cell packs, or plug trays, water the tray, and you have a watertight base for raising seedlings without water spilling on your windowsill, heat mat, or bench.
Why This Is The Tray Everyone Uses
- Industry-standard 1020 size — 11" × 22" is the dimension every cell pack, peat-pellet kit, plug tray, humidity dome, and grow-light shelf is designed around. Buy this once, and every accessory fits.
- Watertight — no drain holes; holds water for bottom-watering seedlings and prevents drips on shelves, mats, and windowsills
- Sturdy black plastic — reusable for many seasons; the black color absorbs heat to keep root zones warm
- Stackable & storable — nest empty trays for off-season storage
- Pairs with the Jiffy Gro-Dome (TDOME) — the matching humidity dome that drops right on top for greenhouse-effect germination
What It Holds
- Jiffy peat pellets (1.5" or 2") — ~50–72 pellets fit per tray
- Jiffy peat pots / peat strips — ~32–48 pots per tray depending on size
- Plastic cell packs — standard 4-pack, 6-pack, or 9-pack inserts; ~8–18 packs per tray
- Plug trays — 50, 72, 128, or 200 cell plug inserts all sit flat in this tray
- Loose potting mix — for direct-sow seed-starting if you don't want cells
How to Use
- Choose your insert — peat pellets, cell packs, or plug trays. Drop them into the tray.
- Bottom water — fill the tray with ~1/2 in. of water and let the inserts wick up. Pour off excess after 15 minutes so roots don't sit in standing water.
- Add a humidity dome (Jiffy Gro-Dome / TDOME) for the first 5–10 days during germination. Remove the dome as soon as seedlings emerge.
- Set on a heat mat for warm-season crops (tomatoes, peppers, eggplant, basil) at 70–80°F.
- Provide light — a sunny south window or 2–4 in. below a T5 / LED grow light, 14–16 hours/day.
- Transition outside when night temps stay above the crop's tolerance. Harden off over 7–10 days before transplanting.
- Between seasons — rinse with warm water (mild bleach if you had a damping-off problem), air dry, nest for storage.
What This Is — And What It Isn’t
The tray only. Inserts (peat pellets, cell packs, plug trays), soil, seeds, dome, heat mat, and grow light are sold separately. This is the base — you build your seed-starting setup on top of it.
No drain holes. This is a solid-bottom watertight tray, ideal for bottom-watering and for catching runoff under cell packs that DO have drain holes. If you need a tray with drain holes for top-watering, look at a perforated 1020 tray instead.
Specifications
- Manufacturer: Jiffy (Jiffy Products / Plantation Products)
- Model: TTRAY
- Dimensions: 22" long × 11" wide (the standard 1020 size; ~2.5" deep)
- Material: black plastic (HDPE/PP)
- Drain holes: none (solid-bottom, watertight)
- Color: black
- Reusable: yes — rinse and store between seasons
- UPC: 033349412340
What’s in the Box
- One Jiffy Plant Tray (black 11" × 22" 1020 base only; inserts and dome sold separately)
Best Paired With
- Jiffy Gro-Dome (TDOME) — the matching humidity dome that drops right on top — sold separately at Garoppo’s
- Jiffy peat pellets — classic seed-starting media; fits 50–72 per tray
- Plastic cell packs & plug trays — for cell-by-cell variety separation
- Seedling heat mat — for warm-season crops at 70–80°F soil temperature
- T5 or LED grow light — 2–4 in. above seedlings, 14–16 hours/day
- Plant labels & markers — for tracking varieties
Stop by Garoppo’s to pick one up, or schedule local delivery within our service area. Stock up before spring seed-starting season — you'll want one tray per row of cells you're starting.