How to sow and grow lemon verbena? SOIL CHOICE: Lemon verbena prefers cool, rich, and well-drained soil; choose a sunny location. SOWING: Sow your lemon verbena seeds in spring (March-April) or in autumn (September-October). Sow the seeds on the surface of the soil, press them into the earth, and then water. CULTIVATION: Thin to 30 cm apart.
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