Rooting hormones speed up and improve the success rate of tree cuttings and woody plant propagation. This guide compares top options from trusted brands, focusing on strength, versatility, and best-use scenarios for trees, ornamentals, and woody cuttings. Each product below includes core features to help you choose the right formulation for your propagation project.
| Product | Brand | Strength | Best For |
|---|---|---|---|
| Garden Safe Brand TakeRoot | Garden Safe | Powder (IBA-based) | General woody and herbaceous cuttings |
| Hormex Rooting Hormone #8 | Hormex | 0.8% IBA | Semi-hardwood and trees |
| Hormex Rooting Hormone #16 | Hormex | 1.6% IBA | Hard-to-root woody plants & trees |
| RootBoost Rooting Hormone | Gardentech | Liquid, carrier varies | Indoor/outdoor plant propagation |
| Hormex Rooting Hormone #1 | Hormex | 0.1% IBA | Delicate houseplants & herb cuttings |
Garden Safe TakeRoot Rooting Hormone
Garden Safe TakeRoot is a powder rooting hormone that supports new plant growth from cuttings. Its active ingredient is Indole-3-butyric acid (IBA), a compound naturally involved in root development. The product is applied by moistening the cutting end, rolling it in the powder, then tapping off excess before planting. Designed for a broad range of home, garden, and greenhouse varieties, it emphasizes straightforward use and reliable rooting performance for woody and herbaceous cuttings alike.
Hormex Rooting Hormone #8
Hormex #8 is a mid-strength rooting powder formulated with Indole-3-Butyric Acid (IBA) to stimulate root development in semi-hardwood cuttings, including trees and ornamentals. Available in multiple strengths, this line helps tailor rooting strength to softwood, semi-hardwood, or hardwood cuttings. It performs well across growing media such as rockwool, coco coir, peat moss, and soil, and pairs with Hormex propagation aids for enhanced results.
Hormex Rooting Hormone #16
Hormex #16 provides the highest potency in the Hormex lineup, designed for hard-to-root woody plants and tree cuttings. This 1.6% IBA formula targets robust root initiation and development, supporting propagation success for difficult species. Like other Hormex products, it is compatible with multiple mediums and is part of a broader range that helps gardeners select the proper strength for their specific plant type and project needs.
RootBoost Rooting Hormone 2 Ounces
RootBoost Rooting Hormone from Gardentech offers a liquid formula designed to support propagation for both indoor and outdoor plants. It emphasizes faster rooting from cuttings and contains a familiar rooting compound used by professionals. Its liquid form can be convenient for uniform application across multiple cuttings and may be especially suitable for mixed woody houseplants and small trees.
Hormex Rooting Hormone #1
Hormex #1 is a delicately balanced rooting powder designed for delicate softwood cuttings, including herb and some ornamental plant cuttings. With 0.1% IBA, it provides a gentler option compared to higher-strength formulations, making it suitable for sensitive species while still supporting reliable root formation when used correctly with the recommended dipping and planting procedures.
Hormex Concentrate with B1
This concentrate provides a liquid rooting stimulant that includes B1 to support stronger transplanting and reduced root stress. It is designed to work across growing methods and plant types, making it a versatile choice for propagation, transplantation, and year-round maintenance of trees, vegetables, ornamentals, and houseplants alike.
Root Drops
Root Drops offer a liquid rooting hormone with a dual-action formula that includes Indole Butyric-3 Acid and added vitamins. It’s designed to accelerate and optimize root growth, with versatility for water propagation, soil transplants, and substrates like leca or moss. The product emphasizes reducing transplant shock and supporting robust root establishment for a broad range of plant types, including trees and woody ornamentals.
Buying Guide: Key Considerations For Tree Propagation
- Plant type and hardiness: Hard-to-root woody trees often benefit from higher-IBA formulations (e.g., 1.6% IBA) while delicate softwood cuttings may succeed with lower strengths.
- Cutting stage: Semi-hardwood and hardwood cuttings typically require stronger treatments than softwood cuttings or herbaceous stems.
- Medium compatibility: Ensure your rooting hormone is compatible with your chosen propagation medium (soil, rockwool, coco coir, hydroponics, etc.).
- Application method: Powders require proper tapping to remove excess, gels and liquids can offer even coverage; choose based on your workflow and preference.
- Storage and shelf life: Keep products in a cool, dry place. Many powders last longer when sealed tightly; liquids should be protected from sunlight.
- Safety and usage: Follow label directions, wear gloves as needed, and avoid cross-contamination between plant varieties to prevent unintended hormone exposure.
- Cost vs. benefit: Higher-potency powders may reduce rooting time for tough species, but for routine propagation of common trees, mid-strength products often suffice.
- Brand reliability: Established brands with clear instructions reduce guesswork and help ensure predictable results in diverse settings.
Rooting hormones can enhance propagation success, but outcomes vary with species, technique, and environment. The options above cover a spectrum from delicate to hard-to-root woody plants, offering both powder and liquid forms to fit different propagators’ needs. When selecting a product, consider your target tree species, cutting type, and preferred application method to maximize rooting efficiency and plant health.