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We guarantee our shrubs for one year after purchase.
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Castle Keep has glossy, leathery, evergreen foliage that makes a handsome choice for landscaping. This is a smaller-than-average blue holly with soft-to-the-touch deep green foliage. This is a female variety which will develop bright red berries if male Castle Wall blue holly is planted nearby.
Castle Keep reaches 3-5 feet tall and 3-4 feet wide at maturity. It is hardy in zones 5-7, plant in part to full sun (4+ hours daily). It's best to avoid pruning altogether, as pruning after bloom will remove the potential for fruit to develop. Fertilize with Proven Winners Continuous Release Plant Food in spring.
One male plant will pollinate 5-7 females; plants should be located within about 50'/15.24m of each other.
1 gallon shrubs are 6-24 inches tall at shipment and quart shrubs are 5-8 inches tall at shipment depending on the season and plant.
Trialed and tested for years, Proven Winners® plants continually out perform all others across the world in disease resistance, less maintenance, bloom coverage, and more.
You're just clicks away from the best plants arriving at your doorstep. 30 acres of greenhouse at your fingertips, we make it easy to shop Proven Winners® plants.
If you're not happy, we're not happy. Simply contact us at (734) 654- 7485 or firstname.lastname@example.org. We are here to help your garden be successful.