Planting

Rhubarb

Planting Time Rhubarb is tougher than a mule with an attitude. Plant crowns as soon as the soil can be worked. Rhubarb loves that crisp early-season chill.

Depth & Spacing Plant crowns about 1 to 2 inches below the soil surface, with buds pointing upward. Space plants 18 to 24 inches apart.

Soil & Fertilization Rhubarb thrives in rich, well-drained soil with lots of compost mixed in. Avoid heavy nitrogen fertilizers or you’ll wind up with monster leaves and weak stems. A balanced fertilizer in early spring keeps the plant happier.

Watering Needs Rhubarb likes consistent moisture, around 1 inch of water a week. Water at the base and keep the leaves dry. Mulch helps keep soil moist and cool longer.

Sunlight Requirements Full sun is best, but rhubarb can handle a little afternoon shade without complainin’. Give it at least 6 hours of sunlight.

Harvesting Harvest stalks when they’re thick, crisp, and brightly colored. Grab the stalk at the base and pull with a sharp tug.

Troubleshooting Watch out for crown rot, slugs, aphids, and fungal diseases. Crown rot shows up in soggy soil. Aphids can be blasted off with water.

Captain Greenhouse Tip Growing rhubarb in a greenhouse? Keep things cool—rhubarb likes brisk air more than sunshine. Ventilate well and avoid letting temps climb. Harvest early in the morning for crisp stalks.