Independent buying guides for balcony and small-space gardeners

Balcony Garden Glossary: 14 Terms Explained

The words that show up in balcony garden specs, reviews and how-to guides, explained without jargon.

Container gardening
Growing plants in pots, planters or bags instead of in the ground, the standard method for balconies.
Determinate tomato
A bush-type tomato that grows to a set height and fruits all at once, better suited to containers than vining types.
Drainage hole
An opening in the bottom of a container that lets excess water escape so roots do not rot.
Drip irrigation
Tubing and emitters that deliver slow, steady water to each pot, often on a timer.
Related: Best Drip Irrigation Kits for Balcony Gardens
Fabric grow bag
A breathable fabric container that air-prunes roots and weighs far less than ceramic.
Related: Best Fabric Grow Bags for Balcony Gardening
Full sun
At least six hours of direct sunlight a day. Many fruiting vegetables need it, while leafy greens tolerate less.
Hardening off
Gradually exposing indoor-raised seedlings to outdoor conditions over a week or two before planting out.
Indeterminate tomato
A vining tomato that keeps growing and fruiting all season, needing large pots and tall support.
Related: Best Plant Support Stakes
Load limit
The weight a balcony structure is designed to carry. Wet soil is heavy, so spread large containers and check building rules.
Microclimate
The local conditions on your balcony, such as wind, reflected heat and shade from buildings, which can differ a lot from the regional forecast.
Neem oil
A plant-derived oil used as an organic treatment for common pests like aphids and spider mites.
Related: Best Neem Oil for Plants and Pest Control
Potting mix
A light, soilless growing medium for containers. Garden soil compacts in pots and drains poorly.
Related: Best Potting Soil
Railing planter
A planter that hangs over or clips onto a balcony rail. Always secure it so it cannot fall.
Related: Best Balcony Railing Planters
Self-watering planter
A container with a water reservoir that wicks moisture up to the soil, reducing daily watering.
Related: Best Self-Watering Planters for Balconies