Plugs & Substrates
Propagation plugs and cubes for seeds and cuttings: Root Riot cubes, rockwool propagation and transplanting cubes, Jiffy 7 peat pellets in packs of 25, 100 and 1000, Jiffy peat-free and coir pots and Plug Life 80/20 trays.
In StockJiffy
£2.66
In StockJiffy
£9.86
In StockJiffy
£80.96
In StockPlug Life
Plug Life 80/20 Peat Mix - Tray of 104
£11.95
In StockJiffy
Jiffy Botanian - Peat Free Pots - 6cm
£4.46
In StockJiffy
Jiffy Botanian - Peat Free Pots - 8cm
£3.56
In StockJiffy
Jiffy Botanian - Quick Soil Mix Pellets
£4.91
In StockRoot Riot
£6.26
In StockCultilene
£10.35
In StockCultilene
£2.66
In StockJiffy
£0.18
Pre-OrderJiffy
Jiffy Botanian - Peat Free Pots - 10cm - Pack of 6
£4.01
About Plugs & Substrates
Choosing a plug
Root Riot cubes are a soft, organic compost sponge that holds moisture and air in the right balance. Cuttings root in them quickly and the whole cube goes into the next pot, so nothing is disturbed. They come in trays and refill bags.
Rockwool cubes are inert, sterile and hold a lot of water, which suits hydroponic systems: a small propagation cube fits into a 75mm transplanting cube, and that fits a slab or a net pot. Soak rockwool in water adjusted to about pH 5.5 before use.
Jiffy 7 pellets are compressed peat in a fine net that swells with water: cheap, tidy and good for seeds. Jiffy Botanian pots are peat-free and biodegradable, so they are planted pot and all. Plug Life 80/20 is a peat mix in trays of 104 for larger batches.
Tips
Keep plugs moist, not soaked, and warm: a heated propagator makes a real difference in a cold room. Cover seedlings and cuttings to hold the humidity until roots show, then vent them a little more each day.
Growers' Guides
- Sowing Seeds Indoors: How to Germinate, Prick Out and Harden OffHow to germinate seeds indoors, choose a seed propagator, prick out and transplant seedlings, what to feed them and how to harden them off.
- Perlite vs Vermiculite: What They Are and When to Use EachWhat perlite and vermiculite are, how they differ, which to use for seeds, cuttings, soil and coco, and the soils and mixes we sell with perlite in them.
- Clay Pebbles and Rockwool Cubes: How to Use Them in HydroponicsWhat clay pebbles and rockwool are, how to rinse, soak and plant in them, which hydroponic systems each suits, and how they compare with coco.
- Propagators and Cuttings: How to Root CuttingsHow to take cuttings that root: choosing a propagator, the starter plugs, Clonex rooting gel, which propagation light and tent, and when to open the vents.
- Fungus Gnats (Sciarid Flies): How to Get Rid of ThemSmall black flies around your pots? They're fungus gnats, or sciarid flies. How to spot them, why they appear and how to get rid of them for good.