Can you grow leeks in containers?

Container-based cultivation of leeks enables city-based gardeners to grow these gourmet vegetables where a backyard is not possible. I have harvested nice size stems from leeks that I grew in 12-inch containers on my 14th-floor balcony. The secret is to imitate the conditions in which they grow naturally - deep soil, constant moisture, and good feeding.

King Richard leeks are the prevalent choice among my container garden leeks for a reason. Their height is favorable due to their much shorter erect stature, 18 inches, which allows them to resist wind better than the taller varieties. I start them as seeds planted ¼ inch deep in early March, covering the seeds with a cloche to improve germination. Weekly sprays of liquid kelp give them tenderness, even in the constraint of a container.

Tackle your container challenges with the help of drip irrigation. My self-watering pots ensure that the humidity levels are perfect for my plants during hot summer spells. Put about 1 inch of gravel in the bottom of each container to prevent your drainage holes from clogging. Turn your pot at least 90° every day so that each side gets an even amount of sunlight. Crooked stems are a sign of uneven sun exposure.

Wrap pots in bubble wrap to winterize container leeks. In Zone 6b, I harvest fresh stems with this method until December. After it drops below 20°F (-6°C), cover them with straw for mulch. I also often move the pots against south-facing walls to capture the last bit of heat in late fall.

Read the full article: How to Grow Leeks: Beginner's Guide to Sweet Harvests