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Scarlet Rose Mallow Hibiscus coccineus 20 Seeds

Scarlet Rose Mallow Hibiscus coccineus 20 Seeds

Regular price $10.99 USD
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Hibiscus coccineus is a vigorous, sturdy, erect, woody-based perennial that typically grows 3-6' tall and features showy, hollyhock-like, 5-petaled, bright scarlet red flowers (3-5" diameter) borne in the upper leaf axils of the plant over a long, mid-summer to early fall bloom period. Each flower has a prominent and showy center staminal column. Leaves are deep green and palmately compound (5-6" wide). Sometimes commonly called swamp hibiscus because it is native to marshes and swamps in Alabama, Georgia and Florida.


Grow in average, medium to wet soil in full sun to part shade. Best in full sun or light shade. Plants may become leggy with diminished flowering in too much shade. Tolerates summer heat and humidity, but soil should be kept moist throughout the growing season. Only reliably winter hardy to USDA Zone 6, so it should be grown in a protected location with a good winter mulch in the St. Louis area. Garden Uses. A large plant for the rear of the perennial border, mixed border or courtyard. Also effective when grouped in moist locations such as along the edge of a pond or stream. Hardy in zones 6-9.

Growing Instructions

The seeds have a hard seed coat that has to be treated, or scarified, in order for water to enter the seeds so that they can sprout.

  1. Scarify the seeds by nicking or sanding the seed coat.
  2. Soak the seed in water for 24 hours.
  3. The seeds like moist soil. Prepare a mixture of half potting soil and half sand, perlite or vermiculite. Put the soil in a pot.
  4. Sow the seeds ¼ inch deep.
  5. Water the seeds.
  6. Place the pots in an area with warm temperatures in full sun or part shade. The seeds take 1-3 weeks to germinate.
  7. When the seedlings are a few inches tall, they can be transplanted.

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