The Castle Spire Blue Holly (Ilex x meserveae 'Hachfee') is a hybrid evergreen shrub known for its tall and narrow growth habit with dark green, glossy leaves that have spiny margins. This plant is also known for its striking blue berries that appear in the fall and persist through winter, adding to its ornamental value.

The Castle Spire Blue Holly is a dioecious plant, which means that it has separate male and female plants. In order to produce berries, female plants need to be pollinated by a male plant of the same species. The male plants produce small, insignificant flowers that are not showy but provide the necessary pollen for fertilization.

The best time for pollination is in the spring when the male plants produce their small, yellowish-white flowers. Pollination occurs when the pollen from the male flowers is carried by bees or other insects to the female flowers. This process can occur naturally, or it can be facilitated by gardeners through hand-pollination, which involves transferring pollen from the male flowers to the female flowers using a soft-bristled brush or cotton swab.

It is important to note that planting male and female plants in close proximity is essential for proper pollination and fruit production. A general rule of thumb is to plant one male plant for every six to eight female plants. Additionally, it is recommended to have male plants in multiple locations to ensure cross-pollination and increase the likelihood of successful fruit production.

Castle Spire Blue Holly (Ilex x meserveae 'Hachfee') FAQ:

What is Castle Spire Blue Holly?

Castle Spire Blue Holly is an evergreen shrub that can grow up to 10 feet tall and 3 feet wide. It has dark blue-green foliage and can produce small white flowers in the spring and bright red berries in the fall and winter.

Is Castle Spire Blue Holly easy to grow?

Castle Spire Blue Holly is relatively easy to grow and maintain. It prefers moist, well-drained soil and partial shade to full sun. It is also drought-tolerant once established.

When should I plant Castle Spire Blue Holly?

The best time to plant Castle Spire Blue Holly is in the spring or fall when the weather is mild and the soil is moist. Avoid planting during periods of extreme heat or cold.

How do I care for Castle Spire Blue Holly?

• Water regularly during the first year of growth to establish a deep, extensive root system.
• Fertilize in the spring with a slow-release, balanced fertilizer.
• Prune in late winter to early spring to maintain its shape and size.
• Protect from extreme heat or cold with a layer of mulch around the base of the plant.

Do I need to prune Castle Spire Blue Holly?

Yes, Castle Spire Blue Holly should be pruned in late winter to early spring to maintain its shape and size. Avoid pruning during the growing season as it can affect fruit production.

Does Castle Spire Blue Holly attract wildlife?

Yes, Castle Spire Blue Holly can attract birds with its bright red berries in the fall and winter.

Is Castle Spire Blue Holly toxic?

Yes, Castle Spire Blue Holly is toxic if ingested. It should be kept away from children and pets.