Evergreen trees – Ring-Cupped Oak

Ring-cupped oak 

Botanical name: quercus glauca 

Beginner friendly?: yes

Average size at maturity: 20-40 ft in height with up to a 35 ft spread 

Bloom time: spring 

Hardy zone: zones 4-8 

Flower color: yellow/green 

Foliage color: green, brown, purple

Growth rate: grows 1-3 ft per year 

Pruning instructions: prune to maintain desired size and shape in the winter

Propagation methods: propagate with cuttings 

Landscape use: privacy, shade, street tree, background tree 

Light needs: 6 hours of sun per day 

Special features: attracts wildlife, adaptable to poor conditions, produces acorns 

Watering instructions: allow the top 2 inches of soil to dry between watering sessions 

Fertilizing instructions : use a tree and shrub slow-release fertilizer once a year in the spring 

Best time to plant: spring, summer, or fall

Best type of soil: clay or loam 

Companion plants: oakleaf hydrangea, beautyberry, boxwood 

Toxicity level: toxic for humans and pets if ingested 

Invasive species: no