Blue Star Juniper

Blue Star Juniper (Juniperus squamata 'Blue Star')

Blue Star Juniper is a slow-growing, compact evergreen with striking silvery-blue foliage. It thrives in full sun and is highly drought tolerant once established.

Planting

• Choose a location with 6–8+ hours of direct sun and well-drained soil.
• Dig a hole 2–3 times wider than the root ball but no deeper than the root ball.
• Place the top of the root ball slightly above or level with the surrounding soil.
• Backfill with the native soil. Avoid adding large amounts of compost unless your soil is extremely poor.
• Water thoroughly after planting to eliminate air pockets.
• Add 2–3 inches of mulch around the plant, keeping mulch a few inches away from the trunk.

Watering

• Immediately after planting, soak the root ball and surrounding soil.
• Weeks 1–2: Water every 2–3 days if there is no significant rainfall.
• Weeks 3–12: Water once or twice per week, soaking the soil 6–8 inches deep.
• After 3 months: Water only during extended dry periods. Overwatering is a common cause of problems.

Care

• Fertilize lightly in early spring with a balanced slow-release fertilizer if desired.
• Prune only to remove dead or damaged branches. Avoid cutting into old, brown wood, as it rarely regrows.
• No pollination is needed since it is grown for its foliage, not fruit.
• Monitor for spider mites during hot, dry weather and ensure good air circulation.

Container Growing

• Use a large pot with drainage holes and a well-draining potting mix.
• Water when the top 2 inches of soil are dry, but never let the pot remain waterlogged.
• Protect the container from extreme winter freeze-thaw cycles in colder climates.

Blue Star Juniper FAQs

1. Does Blue Star Juniper stay blue all year?

Yes. Blue Star Juniper is an evergreen that keeps its attractive silvery-blue foliage throughout the year. The color may become slightly richer or take on subtle seasonal tones in winter, but it remains a colorful focal point in every season.

2. How big does Blue Star Juniper get?

Blue Star Juniper is a slow-growing shrub that typically reaches about 2 to 3 feet tall and 3 to 4 feet wide at maturity. Its naturally rounded, compact shape requires very little pruning, making it an easy addition to low-maintenance landscapes.

3. Can Blue Star Juniper grow in containers?

Absolutely. Its compact size and slow growth make Blue Star Juniper an excellent choice for containers. It provides year-round color on patios, porches, and entryways, as long as the container has good drainage and receives plenty of sunlight.

4. Does Blue Star Juniper need a pollinator or produce berries?

Blue Star Juniper does not require a pollinator to be grown as an ornamental landscape plant. While mature plants may occasionally produce small berry-like cones if both male and female junipers are nearby, they are grown primarily for their striking evergreen foliage rather than fruit production.

5. Is Blue Star Juniper drought tolerant?

Yes. Once established, Blue Star Juniper is highly drought tolerant and thrives in well-drained soil with full sun. It requires only occasional watering during extended dry periods, making it an excellent choice for water-wise and low-maintenance landscapes.