Life Span
Biennial
Annual and Perennial
Type
Tree
Tender Perennial
Origin
Central United States, Canada
Southern Europe, Mediterranean
Types
Two-petal ash, Single-leaf ash, Fragrant ash
Erysimum franciscanum
Number of Varieties
6550
0
40000
👆🏻
Habitat
Dry areas, Hills, limestone outcrops, Moist woods
gardens, Grassland, Prairies
USDA Hardiness Zone
4-87-9
0
99
👆🏻
AHS Heat Zone
8-4
9-7
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6
4, 5, 6, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Mat-forming
Plant Size
Minimum Height
2,500.00 cm30.50 cm
0
3900
👆🏻
Minimum Width
100.00 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
Green, Purple
Pale White, Pale Yellow, Yellow, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Tan
Green
Leaf Color in Spring
Green
Gray Green
Leaf Color in Summer
Green
Gray Green
Leaf Color in Fall
Yellow, Light Yellow
Gray Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Pinnate
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Spring
Spring, Late Spring, Early Summer, Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Transplanting
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Allow soil to be completely dry in between waterings, Water Deeply, Water less during winter
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Neutral, Alkaline
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Do not prune during shooting season, Prune if you want to improve plant shape, Prune prior to new growth, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer
No fertilizers needed
Pests and Diseases
Red blotch
fungus, Insects, Red blotch
Plant Tolerance
-
Drought
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Bees, Birds, Butterflies
Allergy
-
Skin irritation
Uses
Aesthetic Uses
-
Beautification, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree
Air purification
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
Inner Bark, Seeds
Whole plant
Other Uses
Used as a dye, Used for woodware, Wood is used in construction
Showy Purposes
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Shade Trees, Street Trees
Alpine, Container, Edging, Foundation, Groundcover, Mixed Border, Rock Garden / Wall
Botanical Name
FRAXINUS quadrangulata
Erysimum franciscanum
Common Name
Blue Ash
Franciscan wallflower, San Francisco wallflower
In Hindi
Blue Ash plant
Franciscan wallflower
In German
Blue Ash Pflanze
Franziskaner Mauerblümchen
In French
usine Blue Ash
wallflower franciscaine
In Spanish
planta de Blue Ash
alhelí franciscana
In Greek
φυτό Blue Ash
Φραγκισκανών wallflower
In Portuguese
planta Blue Ash
wallflower Franciscan
In Polish
Blue Ash roślin
wallflower Franciszkanów
In Latin
Blue Ash herba
Francisci Wallflower
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Brassicales
Family
Oleaceae
Brassicaceae
Genus
Fraxinus
Erysimum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Oleeae
-
Subfamily
-
-
Number of Species
6550
1
27800
👆🏻