Declaration Lilac

As low as $99.39 was $139.99
Availability: In stock

The gorgeous deep-purple to reddish-purple blooms of the Declaration Lilac (Syringa x hyacinthiflora 'Declaration') will draw pollinators and admirers alike! One of the earlier blooming Lilacs, Declaration welcomes spring with larger panicles of sweet-smelling blooms on an upright, sturdy shrub!

Those fragrant blooms are held upon sturdy stems and will grace your garden and indoor vase arrangements alike! Local hummingbirds and a host of bees and butterflies will be flocking to your garden in search of nectar once those blooms burst open in spring!

A mid-sized Lilac, Declaration will fit perfectly in your landscape for a wide variety of beautiful uses. Declaration Lilac has deep green leaves that make a fantastic backdrop for Perennials and Roses later in the season! And then in the fall, this unique selection has another trick up its sleeve! Dramatic purple to burgundy fall color lights up your shrub for one last wave goodbye before winter!

Growing to a nice upright shape that's 6-8 feet tall and 5-6 feet wide, this Lilac works well for smaller yards and established landscapes that just need a bit more oomph! Incredibly cold-hardy, tolerating winters down to arctic USDA zones 2 through 7, there is little in your climate that will faze this hardy ornamental flowering shrub! Declaration Lilac is also great for firescaping and creating buffers in your fire-wise landscaping!

Planting and Application:

Working wonderfully in your borders or mixed shrub hedge, it will create a lovely and colorful foundation plant. Declaration Lilac also makes a wonderful privacy screen! Growing and staying narrow and upright, create the privacy border of your dreams and feel confident your neighbors won't mind the view from the other side either!

Groupings not only provide screening but also fragrant floral garden rooms and nooks, dividing your backyard into mini-retreats for not only yourself but also your wildlife and feathered friends that come to roost and nest among the dense branching.

Any garden becomes a cut flower and pollinator garden with the addition of a Lilac! Decorate your front foundation plantings and anchor garden beds with these corner-softening shrubs! Incredible depth of color makes these ideal specimens that accent any garden, fill in the corners of your landscape with color, and bring fragrance everywhere!

Why not go for the gusto and create an entire backdrop border for your garden beds with a whole collection of Lilacs? You'll love including the dark purple early blooming Declaration with mid-season blooming pinkish Persian Lilacs or the fine texture of Miss Kim. Include late-season Miss Canada or Albert F. Holden to round out the spring, with some long-blooming Common Purple Lilacs and reblooming Lilacs to fill in the gaps between!

  • Early Spring Flowers!
  • Deep-Reddish Purple Showy Blooms
  • Heavenly Lilac Fragrance
  • Hardy Mid-Sized Plant
  • Pollinators Galore!
  • Specimen, Early Spring Color, Hedges, Privacy & Pollinators

#ProPlantTips for Care:

Declaration Lilac thrives in full sun and is very tolerant of a wide range of soil types and highly resistant. Lilacs are synonymous with easy-care and cold resistance and it also loves the full sun! Not particular on soil type, any rich well-drained soil is best, preferring slightly alkaline soils. Enrich with compost and add organic, slow-release blooming shrub fertilizer in spring. Be sure Lilacs do not sit in water, nor dry out for too long to protect your investment.

A generous layer of mulch helps retain soil moisture as well as insulate the root system from heat and chill. Water well through the crucial establishment period and during extended drought. Be sure to not cluster Lilac too tightly among other large trees or shrubs. 

If you live with deer in your area, apply repellent spray on planting day. Deer are hungry and curious, and you want to train them to leave your plants alone. Reapply according to the label.

Don't miss a single bloom! Follow these easy Pruning steps for the best flowering. It is important not to prune Lilacs until after they have finished blooming, because if you wait too long and you may remove next year's flowers! Every few years, Lilac benefits from a renewal pruning too.

  • Sun Loving Bloomer
  • Well-Drained Enriched Soil
  • Moderate Moisture & Mulched Beds
  • Long-Lived & Low Maintenance
  • Rarely Bothered by Deer
  • Impressive Cold Hardiness
  • Great Fire-Wise Landscaping Plant

Declare for yourself that the fragrant blooms, gorgeous color and tough nature of Declaration Lilac are amazing! Anywhere it goes in your landscape becomes your favorite, so hurry and order yours from the expert growers at Nature Hills Nursery!

Frequently Asked Questions

How big does Declaration Lilacs get?

The Declaration Lilac can obtain a mature height of 6-8 feet and have a slightly smaller spread.

How fast do Lilacs grow?

Lilacs have a medium growth rate and one might see 1 - 2 feet of new growth per year in optimal growing conditions.

Are Lilacs a tree or a bush?

Lilacs are shrub-form plants that can be pruned into small tree-form specimens if desired.

Which is the most fragrant Lilac?

Lilac's iconic scent lasts for a week or more after they've opened and some of the most fragrant (arguably) are the Beauty of Moscow, President Grevy, the yellow Primrose and the Sensation Lilac!

What shipping options do you offer? works closely with our growers and nursery professionals to ensure we ship when it is most appropriate for your area. Our goal is to deliver the hardiest plants by avoiding extreme high and low temperatures. Check out our shipping schedule for more information and to learn our wills and won'ts when it comes to shipping plants. Find your Declaration Lilac for sale here at!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Keep in mind, specific varieties and different growing conditions can affect the rate at which plants grow. Variations in size may occur.

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#6 Container Ranges from 5.25 to 6.01 dry gallons / 23.12 to 26.42 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About 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 and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


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.

*If you have found your zone already, it will be highlighted in the table below.
Color Zone Times
3 Spring 2019
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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


Declaration Lilac Is Suited to Grow in Zones 2-7
Growing Zones 2-7
More Information
Brand Nature Hills' Choice
Botanical Name Syringa x hyacinthiflora 'Declaration'
Type Deciduous
Mature Height 6 - 8 feet
Mature Spread 5 - 6 feet
Sun Exposure Full Sun
Soil Well Drained
Moisture Moderate
Growth Rate Medium
Flower Color Reddish-Purple
Fall Color Purple
Pollinator Friendly Yes
Pruning Time After Flowering
Fragrant Yes