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Declaration Lilac closeup of violet purple flower clusters

Declaration Lilac

Syringa x hyacinthiflora 'Declaration'

Shipping Calculated at Checkout

SizeLARGE SHRUB||2-2.5 ft. tall||Ships in|Spring 2026

Not available in your area

ELEGANT AND HARDY REDDISH PURPLE LILAC BLOOMS

FEATURES:

  • A grand panicle of fragrant reddish purple lilac flowers bloom early in spring, attracting a host of butterflies
  • The heart-shaped green leaves accent the clouds of florets and make a nice addition to a cut floral lilac display
  • Easy to grow, cold-hardy, deer-resistant, and long-lived
  • Hand selected fresh from the Grower
  • Ships in a plant-safe designed box

Growth Facts

Hardiness Zone 3-7
Mature Height 6-8' tall
Mature Width 6-8' wide
Exposure Full Sun
Spacing 6-12' apart

Why Plant Declaration Lilac?

Heart-shaped leaves and bright purple flowers are just two of the aspects of Declaration Flowering Lilac that will have you falling in love with this shrub. This heavy-blooming lilac not only provides great color, but has the characteristic lilac scent to go with it. Plant this stunner in full sun and watch as the bright purple blooms light up the landscape for a lovely show that lasts into summer. The best part about Declaration? This lilac will bloom days before other lilac varieties, bringing you the desired blooms sooner rather than later.

How to use Declaration Lilac in the landscape?

This medium sized lilac creates an ideal informal screen for your patio or outdoor seating area. Its dramatic, fragrant flowers make it a great specimen plant and perfect for a cut flower garden.

Planting Zones

Hardiness Zone: 3-7

How To Plant Declaration Lilac

Easy to grow in average, medium moisture, well-drained soil in full sun. Tolerates light shade, but best bloom is in full sun. Do not plant in full shade or in soggy soils. Prefers moist, fertile, organically rich, slightly acidic to slightly alkaline soils with good drainage. Do not crowd with other plants, air circulation helps keep the foliage looking good.

How To Water

You should water your Declaration Lilac after planting. Water again when the top inch of soil becomes dry usually once or twice per week.

How To Fertilize

Feed your Declaration Lilac in early spring before new arrives with our Elements Starter Plant Food.

How To Prune

Prune as needed immediately after flowering. Pruning spent flower heads off in late spring will improve the health of the plant by preventing plant energy from being used in developing seed heads. Annually pruning out suckers from the base will help keep your lilac tidy and keep it from spreading but this is optional.

How Does Shipping Work?

Bower & Branch Trees, the real BIG trees, don’t fit in a box! Our big trees, sizes XL and bigger, require expert delivery and care, that means our extra-large trees are shipped on Bower & Branch trucks. We are the only ones who know how to ship our big and bigger trees and plants with tender loving care. We deliver your trees and plants directly to you. Ask Bower & Branch about planting services – we'd be happy to assist in installation.

*For Big trees and Shrubs, Size XL and bigger: Review our Seasonal Shipping Timelines and Policy here.

Your trees and plants are grown across the United States at various Bower & Branch Growers. Depending on your location, your plant orders may be shipped from various locations. Please expect orders with multiple items to be delivered over a number of days as a result. Orders made up of numerous items or selections will not arrive at your home on the same day.

Shipping Delays:

From time to time, Bower & Branch Growers may determine to delay order shipment based on various factors for plant health. Weather in your region, as well as, where your plants are grown, is always considered when shipping. Extreme weather conditions may delay some or all of your order. Bower & Branch allows our Growers to make final shipping decisions based solely to benefit your trees and plants’ health and success.

How Does Sizing Work?

The size of our trees have nothing to do with the container size like you may find elsewhere–big doesn't mean just height - it’s also vigor, age, and overall health. Other online retailers are going to tell you that a plant is a seven gallon, that means nothing to your tree or plant (or you.)

Our trees for sale online are graded on large, x-large, and even bigger sizes. This is because our trees are sized by their age—the higher the letter, the more mature the tree. The age determines the trees’ overall height, size of the trunk and the overall branch density.

All of these characteristics are what you should be looking for when choosing a tree for immediate impact and instant curb appeal. Our extra-large tree and plant sizes are sure to wow you and your neighbors!

See the size guides below.

How Trees are Shipped
Size 4XL D Trees Size 3XL C Trees Size 2XL B Trees Size XL A Trees Size LARGE AA Trees

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