Description

Tree collards are perennial leafy greens belonging to the Brassica family, closely related to traditional collards and kale. They can grow over 1.8 meters (6 feet) tall, developing into tall, spindly plants with few leaves if left unpruned. The leaves are large, crinkly, and range in color from blue-green to purple, depending on the variety. Tree collards are known for their mild flavor and are a reliable source of nutritious greens year-round.

🌞💧 Sun and Water Requirements:
- Prefer full sun but can tolerate partial shade.
- Thrive in well-drained, loamy soil rich in organic matter.
- Require consistent moisture; approximately 2.5 cm (1 inch) of water per week.

✂️🫘 Methods to Propagate:
- Cuttings: The most common method; take 15–20 cm (6–8 inch) cuttings from healthy plants and root them in soil or water.
- Seeds: Less common due to potential variability; sow seeds 0.6–1.2 cm (0.25–0.5 inch) deep in nutrient-rich soil.

🧑‍🌾👩‍🌾 When to Harvest:
- Harvest individual leaves when they reach 15–20 cm (6–8 inches) long.
- Regular harvesting encourages bushier growth and prevents legginess.
- Leaves can be harvested year-round, even after frost, which can enhance their sweetness.

Purpose

Tree collards serve multiple functions in a permaculture system:

- Edible: Provide a continuous supply of nutritious leafy greens rich in vitamins A, C, and K.
- Wildlife Attractor: Flowers attract pollinators such as bees and butterflies, enhancing biodiversity.
- Mulcher: Fallen leaves contribute organic matter to the soil, improving fertility and structure.
- Dynamic Accumulator: Deep roots draw up nutrients like calcium and potassium, enriching the topsoil.
- Erosion Control: Extensive root systems help stabilize soil, reducing erosion on slopes.
- Animal Fodder: Leaves can be used as nutritious feed for livestock.
- Border Plant: Can be used to define garden boundaries and create windbreaks.