Blue Jeans Mountain Lilac (Ceanothus) – 2 Gallon Pot

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Blue Jeans Mountain Lilac

Ceanothus x ‘Blue Jeans’

Other Common Names: Wild Lilac, California Lilac, Mountain Lilac, Holly Leaved Mountain Lilac

Plant Details

USDA Cold Hardiness Zones: 7a-9b Find Your Zone

Plant Type: Evergreen Flowering Shrub

Height at Maturity: 4-7′, depending on pruning

Width at Maturity: 4-7′, depending on pruning
Spacing: 5.5′ for solid hedges; 10’+ for space between plants

Flower Color: Bluish Purple

Flower Size: Small in terminal clusters

Flowering Period: Mid to Late Spring to Mid Summer; sometimes reblooms in Fall

Flower Type: Single in clusters

Fragrant Flowers: –

Foliage Color: Dark Green, holly-like leaves

Fragrant Foliage: No

Berries: –

Berry Color: –

Sun Needs: Full to Mostly Sun, Part Shade in hot coastal climates

Water Needs: Average, Very low when established

Soil Type: Clay (amend heavy clay soil to ensure good drainage), Loam, Sand, Silt

Soil Moisture / Drainage: Moist But Well Drained to Dry

Soil pH: 5.0 – 7.0

Maintenance / Care: Low

Attracts: Butterflies, Birds, Hummingbirds, Beneficial Insects, Visual Attention

Resistances: Clay Soil, Deer – more info, Drought, Dry Soil, Rocky Soil

Intolerances: Constantly Soggy Soil

Description

A shockingly showy and cold hardy hybrid relative of our native American Ceanothus, ‘Blue Jeans’ is one of the toughest, lowest maintenance and prettiest of all Mountain Lilac cultivars. In mid spring the evergreen foliage is literally smothered in delightful, pom-pom like clusters of bluish purple flowers with continued blooming to mid summer. A site to behold in bloom, and something the butterflies, hummingbirds and beneficial pollinators will certainly appreciate. When not in flower its shiny, holly-like deep green leaves provide nice attraction in the landscape. With an upright mounding form 6 to 8 feet tall and equally as wide, Blue Jeans is a fine specimen in the sunny garden and flowering shrub and landscape borders and makes a wonderful informal hedge for natural areas but is just as at home as a clipped hedge in urban landscapes. Long-lived and very easy to grow and low maintenance, it is cold hardy to 0ºF and can handle heat, drought and every type of soil, including clay, provided the site is well-drained. This one doesn’t like wet feet! You might also be happy to know the deer turn their nose up to it.

Blue Jeans Mountain Lilac is a hybrid cross of C. gloriosus and C. masonii from Rancho Santa Ana Botanic Garden.

Wildlife Value

Ceanothus is a larval host plant and highly attractive to various species of butterflies, moths and other beneficial pollinators. Hummingbirds will also visit the flowers. It provides seeds eaten by bushtits, mockingbirds, quail and finches, as well as cover for birds.

Landscape & Garden Uses

Growing 6 to 8 feet tall and equally as wide, the Blue Jeans Mountain Lilac is ideal for use as a specimen or in groupings in flowering shrub borders. Grows well in containers that can be situated on decks and patios. A fine addition to butterfly gardens, pollinator gardens, native gardens, blue or purple theme gardens, cottage gardens and sunny to partially shaded woodland borders.

Suggested Spacing: 7 feet apart for hedge; 11 feet or more apart for space between plants

Growing Preferences

The Blue Jeans Mountain Lilac adapts well to any soil types provided the soil is well-drained. This one does not like wet feet – constantly soggy soil is a killer. When established it is highly drought tolerant and needs little to no water during summer. it will tolerate full sun but in hot coastal climates seems to grow and bloom better with some shade in the afternoon. any well drained soil with little to no summer water. One of the toughest cultivars that also takes very well to pruning for size control and shaping purposes. Since it blooms on old wood from the previous year, wait to prune until after the bloom.

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