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Portulaca

Bred for reduced daylength sensitivity, Happy Hour portulaca flowers under shorter days than others on the market. Flowering uniformly across the series, the well-branched mounded plants are easier to pack and ship with less breakage than prostrate types. Happy Hour is great for hot, dry, full-sun conditions.

During plug production, use a well-drained, soilless medium with a pH of 5.8 to 6.2 and an EC less than 0.75. Portulaca is very sensitive to high salts, particularly high ammonium, during germination. To prevent plants from rosetting, sow seed when the natural daylength is longer than 10 hours, 30 minutes.

Growing on to finish, maintain temperature at 65 to 57° F nights and 68 to 76° F days. Flower buds may not develop or open if temperatures are too low. Maintain light levels as high as possible while maintaining recommended temperatures.

Do not overwater. Allow the media to dry thoroughly between waterings. Plants can be allowed to wilt slightly after the roots reach the side of the container. Fertilize every other irrigation with 15-0-15 alternating with 20-10-20 at 150- to 200-ppm nitrogen.

from PanAmerican Seed




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