Perilla needs enough light and room for branching shoots. Keep the variety label and monitor moisture as the container fills with roots.
Choose the perilla and the growing season
Use labeled seed suited to the intended crop and check local guidance where perilla spreads readily. Green- and purple-leaved selections do not necessarily keep their appearance when saved seed is grown. Start with the seed packet's seasonal instructions.
Sow into a manageable container
Use suitable seed medium, maintain the recommended moisture and avoid burying seed more deeply than instructed. Thin or pot on seedlings before severe crowding. A dense tray of weak stems needs room and light rather than a strong feed.
Establish plants in useful light
Gradually acclimate young plants outdoors when conditions allow. Use draining compost with room for roots, and check water needs as the leaf canopy grows. A hot balcony pot may dry faster than the garden soil nearby.
Manage leaves and flowering
Pinching healthy growing tips can encourage branching. Decide whether leaves or seed are the main objective, since flowering changes the plant's growth. Remove unwanted seedlings and seed heads rather than assuming a container prevents escape.
