Horticulture Report: Ginkgo biloba ‘Marieken’

Plant Name: Ginkgo biloba -‘Marieken’ginkgo-biloba-mariken.jpg
Common Name: Maidenhair Tree – Dwarf
Plant type: Deciduous Conifer
Height: 2-3 feet
Spread:   2-6 feet
Foliage: Green
Golden Yellow in the Fall)
Bloom: April
Flowers:  Insignificant
Exposure:  Full Sun -Part Shade
Soil Requirements: Prefers average well-drained soil but tolerates clay
Water Needs: Medium, even moisture needed
Attributes:   Scalloped Leaves, Fall Color, Dwarf Tree,
Low-Spreading, Male Tree(fruitless), Cascading
Note: Tolerates Deer, Clay Soil, Air Pollution, Saline Conditions & Heat
Uses: Container Plant, Patio Plant, Small garden areas, Bonsai, Rock Garden
Native to: Cultivar originated as witch’s broom found in 1995 by Piet Vergeldt in Kronenburger Park, Nijmegen, The Netherlands.
USDA Hardiness Zone: 3a-10b

Available at Portland Nursery, Portland Oregon

Crepe Myrtle

Plant Name: Lagerstroemialagerstroemia_dynamite
Common Name: Crepe Myrtle
Plant type: Deciduous Ornamental Tree
Height: Large trees 20 ft & up,Small trees 10 -20 ft,
Shrubs 5-10 ft, Dwarf shrubs 2-3 ft
Bloom Time:  Late Summer  
Flower Color: White, Pink, Red, Purple
Exposure:  Full Sun (afternoon shade in hot summer areas)
Soil Requirements: Well Drained Acidic Soil
Water Needs: Moist
Attributes:  Very Showy Flowers, Fall Leaf Color
Note: Blooms on new growth. Prune late winter or early spring before leaves form. Lightly fertilize with balanced fertilizer 10-10-10 in the spring, do not over fertilize.
Uses: Accent Tree, Ornamental, Shrubs & small trees in perennial beds, small shrubs as border planting
Native to: China
USDA Hardiness Zone: 7-9

Horticulture Report: Centranthus ruber

Plant Name: Centranthus ruberCentranthus_ruber Jupiter's Beard
Common Name: Jupiter’s Beard ( aka: Red Valerian)
Plant type: Perennial
Height: 1 ft – 3 ft
Spread:   1 ft – 2 ft
Bloom Time: May
Flower  Color:  ‘Ruber’ – Pale to Deep Rosy Red,  ‘Albus’- White
Exposure: Full Sun, Part Shade
Soil Requirements:  Well Drained Soil- Prefers Alkaline Soil
Water Needs: Medium
Attributes:   Deer Resistant, Drought Tolerant, Attracts Butterflies & other insects,
Showy Flowers, Good Cut Flower, Fragrant leaves.
Note: Easy to grow, Self-seeds freely,  Reported as “suspected” on the Oregon invasive plant list!
Uses:  Containers, Rock Garden, Mixed Flower Bed
Native to: Europe, Northern Africa, Asia Minor
USDA Hardiness Zone: 5-8

Horticulture Report:Rock Rose

Plant Name: Helianthemum   heliamthemum
Common name: Rock Rose
Plant type: Evergreen, or Semi-evergreen, Shrubby Perennial
Height:   6-12 inches
Spread: 1-3 feet

Bloom Time: May – June
Flower Color: Various – White, Yellow, Red, Pink, Scarlet, Orange.
Exposure: Full Sun
Soil Requirements: Well Drained Rocky to Sandy Soil.

Water Needs: Low
Attributes:  Good in Alpine & Rock Gardens, Deer Resistant, Drought Tolerant, Evergreen Good accent plant with texture & form, Gray Foliage & Dark Green Foliage.
Uses: Attracts Butterflies,  Rock gardens, Container, Ground Cover, Xeriscape Gardens.
USDA Zone: 5-8  (check cultivar)