How to Grow Pomegranates in a Greenhouse
- 1). Provide pomegranates full sun from a southern or western exposure. These plants thrive and fruit more profusely in a sunny setting.
- 2). Keep the temperature warm, 60 to 90 degrees year round. They can tolerate colder temperatures of 45 to 50 degrees but may lose their leaves. They need warmth well into autumn to ripen fruit.
- 3). Water moderately, once every week or two. Pomegranates are from a dry climate and thrive best in low humidity atmospheres. Provide soil that drains quickly. Indoors, you may occasionally mist leaves with warm water to simulate rain.
- 4). Fertilize to help plants produce fruit. Give them liquid fertilizer every couple of weeks from early summer to early autumn or a granular slow-release fertilizer once a year in the spring. Do not fertilize in winter.
- 5). Prune plants to keep them bushy. Outdoors, pomegranates become small trees but indoors in a container they will remain shrubs, usually about eight feet tall. Dwarf varieties grow two to three feet tall.
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