Root Stimulators

Root stimulators for clones and transplants

A strong root system in the first two to three weeks sets the ceiling for everything that follows, which is why this is one category where it's genuinely worth spending a bit more. Clonex Rooting Gel is the industry-standard dip for fresh cuttings, while Clonex Mist keeps humidity up around unrooted clones without disturbing the stem. Once cuttings show roots or a seedling goes into its final medium, a liquid root stimulator like Canna Rhizotonic or House & Garden Roots Excelurator takes over, typically dosed at 2-4ml/L for the first two to three weeks.

Great White Premium Mycorrhizae is a one-time inoculant rather than a feed — apply it once at transplant so the fungi can colonise the root zone as new roots form, not partway through veg. Atami B'Cuzz Root Stimulator and Rootbastic work well together on tougher-rooting cuttings, and Mills Start or Dutch Pro Take Root are straightforward single-bottle options if you want to keep the propagation shelf simple.

What we stock

• Canna — Rhizotonic and the certified-organic Bio Rhizotonic, both usable from clone through to early flower as a root-zone tonic.
• Clonex, House & Garden and CX Horticulture — Rooting Gel and Mist, Root Stimulator 1 and Roots Excelurator, and Regen-A-Root for reviving stressed or transplant-shocked roots.
• Plagron and BioGreen — Power Roots and X-Rooting, two mineral-based options for growers who prefer a straight feed over a biological one.

Most liquid root stimulators can be watered in every feed through the first two to three weeks without risk of overdoing it, since they're formulated well below the strength of a normal base feed — it's the mycorrhizal inoculants and gel dips that need a single careful application rather than repeat dosing.

Pair any root stimulator with fresh rockwool or coco propagation cubes, and see propagation nutrients for gentler first-week feeds once cuttings have rooted. Free UK delivery over £50 and free pickup from our Wembley store.