Description
Give your seeds the best possible start with the Plagron Seedbox Starter Kit — the perfect starter set for every grower, trusted by UK growers for fast, even, healthy germination.
💧 Just want the Seedbooster? Click here for the standalone bottle — but FYI, the Seedbox below already includes a full Seedbooster supply, so you don't need both unless you're planning a second batch.
What's in the Seedbox?
- Growing tray with transparent lid (creates a mini-greenhouse effect for consistent humidity)
- Twelve germination plugs
- One bottle of the unique Plagron Seedbooster (makes up 250ml of germination solution)
- Clear step-by-step instructions in your own language
The secret of this set is the Seedbooster — specially designed for faster, more powerful germination. Follow the instructions in the box and your seeds will germinate and develop into perfect plants.
Dosage & Use
- Empty the bottle of Seedbooster into the measuring cup and add 250ml of lukewarm tap water. Stir carefully.
- Pour the mixture into the tray, distributing it evenly over the germination plugs. Wait a few minutes until the plugs have soaked up all the water.
- Using clean hands, take the seeds and plant them at a depth of 5mm in the holes in the middle of the germination plugs.
- Place the transparent lid on the tray, fitting it exactly between the two notches inside the tray to close it completely.
- Place the tray somewhere with a temperature of 20–24°C.
- After four to seven days the seeds will start to germinate. Take the lid off and place it slightly skewed on the tray — this creates small openings so fresh air can reach the seedlings.
- Make sure the seedlings get sufficient light. Once they reach the lid, remove it entirely. Once roots start growing outside the germination plug, the plants are ready to transplant.
Choose Your Option
| Option | What's Included | Price |
|---|---|---|
| Seedbox Starter Kit | Tray + transparent lid + 12 germination plugs + 1x Seedbooster | £25.00 |
| Seedbox + Extra Seedbooster Refill (Bundle & Save) | Full Seedbox Starter Kit + a spare standalone Seedbooster Plus 10ml bottle | £40.00 (save £10 vs buying separately) |
FAQs
Do I need the bundle if I already bought the Seedbox?
No - if you already have the tray and plugs and just need more Seedbooster, grab the standalone Seedbooster Plus 10ml on its own.
Is this suitable for all seed types?
Yes -Seedbooster and the Seedbox growing tray work well for a wide range of seeds and seedlings.
How long does the tray last?
The tray and lid are reusable across multiple germination cycles; the germination plugs are single-use per batch. Pick up extra Next Gen Growplugs when you need more.
Explore More Propagation Essentials
Browse our full Propagation Tents & Kits range, stock up on Propagation Nutrients & Cloning Products, or see everything in Plant Propagation.
