Ray Hartman California Lilac
Ceanothus x 'Ray Hartman'
- Stay Protected with Plant Sentry ™
Ray Hartman California Lilac - #1 Container is backordered and will ship as soon as it is back in stock.
Plant Sentry™
Plant Sentry™
Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.
This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.
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Delivery and Shipping
Delivery and Shipping
Shipping
To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.
Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.
Standard Shipping Rates
At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.
From | To | S&H |
---|---|---|
$0 | $19.99 | $24.99 |
$20 | $49.99 | $29.99 |
$50 | $69.99 | $34.99 |
$70 | $99.99 | $39.99 |
$100 | $129.99 | $44.99 |
$130 | $149.99 | $48.99 |
$150 | $150+ | Approx 28% |
Click here to see our full rates
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
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2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Ray Hartman California Lilac highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateFast
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Flower Color
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Pollinator Friendly
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Fragrant
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Pruning Time
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Bloom PeriodEarly Spring

Growing Zones 9-10
You haven't seen how lovely blue can be until you've seen a Ray Hartman California Lilac (Ceanothus x 'Ray Hartman') in full bloom! When this broad-leaved evergreen shrub is covered in puffy clusters of blue flowers! It originated by chance as a cultivated hybrid between Ceanothus arboreus and Ceanothus griseus in Ray Hartman's garden in the 1940s. It was released under the name 'Blue Sky' in 1954, before earning its discoverer's name later on. As one of the founders of the Saratoga Horticultural Foundation, you can see why he was happy to lend his name to this fantastic shrub!
That's because when late winter and early spring come around, you'll be in for a real treat! The Ray Hartman California Lilac bursts with 6-inch spikes covered in petite blue flowers that are sweetly fragrant! Add a bit of romance and whimsy to your garden. Even when not in bloom, this plant's evergreen leaves still fill any landscape with rich color. They grow to be about 6 inches and are a deep, glossy green. They also have a lovely ridged texture that creates a hardy appearance and brings a welcomed layer of interest.
This plant is drought tolerant and requires little maintenance once established. So, you will have plenty of time to tend to the rest of your garden or relax with a cup of tea and watch what birds and butterflies stop by for a visit. Hardy throughout USDA growing zones 9 and 10, this larger shrub gets 12-20 feet tall and 10-20 feet wide, but you can prune it to any size you need to suit your landscape!
Planting and Application:
And don't be surprised to see winged wildlife stopping by for a nectar treat. These flowers are quite alluring to bees, birds, and butterflies. With all the attention this plant will get from pollinators, your garden ecosystem is sure to thrive. Hummingbirds and songbirds are both attracted to these blooms. Hummers arrive while in California Lilac is in flower, and songbirds come for the nesting and seedheads!
Leave the lower branches on for a pretty privacy screen, fragrant backdrop, or year-round hedge. You can even train Ray Hartman into a multi-trunked tree form for a fantastic specimen! Plant one where you'd like a little shade or where you can sit and watch the butterflies flutter by. This beauty would also make a great addition nearby or add height to your butterfly garden!
Plant as the crown jewel to a dry river bed, a Rock Garden focal point, or add shade to a xeric garden where these shrubs won't care if the soil is poor and the sun is relentless! California Lilacs are also on defensible fire-wise landscaping plant lists!
- Marvelous Clusters of Lavender-Blue Blossoms
- Attracts Butterflies, Bees & Birds
- Fragrant Blooms
- Large Shrub or Specimen Tree
- Fantastic Heat-Loving Accent, Hedge, Xeric & Firescaping
#ProPlantTips for Care:
Ceanothus are very low maintenance once established and don't need any coddling. They'll do their best in lean soils that have perfect drainage. Thriving in full sun and poor soil, they like just enough water to get established. Then, they truly thrive on low water. They require no summer water once established! Tolerating clay, saline, and rocky soil just fine! Prune right after blooming to remove spent flowers and to keep your plant looking even and full. Deer usually leaves these plants alone unless desperate and can nibble on the new growth.
- Full Sun Lover
- Moderate to Low Moisture Needs Once Established
- Handles Any Well-Drained Clay, Sand, Poor Soil & Rocky Soil with Ease
- Tolerant of Coastal & Saline Conditions
- Easy to Grow & Maintain
Bees, butterflies, and birds love the blue blossoms of the Ray Hartman California Lilac, and we're sure you will too! Hurry and reserve yours today at NatureHills.com!