Ideal Container Depth for Growing Basil

Selecting a Container

• Basil plants need a container with a volume and depth to support the mature size of the plant without crowding the roots. Plant basil in a container with a depth of at least 4 to 6 inches. A container that holds at least 1 gallon of soil is adequate, but a container with a capacity of 2 to 3 gallons is better. Select a container with a drainage hole, as basil, like most herbs, may rot in soggy soil.

Soil

• Basil growing in a container thrives in a lightweight, well-drained potting media. A general purpose, peat- based commercial potting soil is best. Mix the potting soil with up to one-third compost to get your basil off to a good start. A handful of perlite or sand improves drainage. Never use garden soil, which becomes compacted and dense, preventing adequate moisture absorption and air circulation to the roots. .

Planting Basil

• Water the potting mixture thoroughly before planting, then let the container drain until the mixture is evenly most but not dripping wet. Alternatively, pour a small amount of water on the potting soil, then mix the water into the potting soil with an old spoon or a garden trowel. Dig a small hole in the center of the pot and plant the basil at the same soil depth as it was situated in the nursery container. If your basil plant is outdoors, locate the container in full sunlight, away from harsh, drying wind. Indoors, place the container on a sunny windowsill.

Water and Fertilizer

• Water the plant until water runs through the drainage hole whenever the top 1 inch of the soil feels dry to the touch, then let the pot drain. Although basil does best in soil that is allowed to dry slightly between waterings, the soil should never become either bone dry or soggy. Fertilize your outdoor basil plant with a balanced liquid fertilizer every three to four weeks. If your basil is grown indoors, fertilizing every month to six weeks is adequate. Use a weak fertilizer solution according to the directions on the package label, as a strong fertilizer solution may burn the roots. If you live in a cold winter climate, bring your outdoor basil indoors before the first frost.