Question 1

Which tray cell size should I choose?

Accepted Answer

Use 50-cell trays for large seeds (beans, cucumber, pumpkin) that need more root space. 72-cell trays are the most popular all-round choice for vegetables and herbs. 128-cell and 200-cell trays are best for small seeds like lettuce, basil, and coriander where you want to germinate many seeds in a compact space.

Question 2

What germination rate should I expect from my seeds?

Accepted Answer

Fresh, quality seeds typically germinate at 80–95%. Seeds stored for more than 2 years or kept in humid conditions may drop to 50–70%. Always check the packed date on seed packets and store seeds in a cool, dry, airtight container — a sealed jar in the fridge works well.

Question 3

What conditions improve germination success?

Accepted Answer

Most seeds germinate best at 20–28°C. Keep germination media evenly moist — never waterlogged — and cover trays with a humidity dome for the first 3–5 days to maintain consistent moisture. Soak large seeds (beans, sunflower, peas) in water for 4–8 hours before sowing to soften the seed coat and speed germination.

Germination Tray

Germination Tray