Planting & Care for Lilac Shrubs
- Lilac shrubs flower best in full sun, but they do tolerate light shade.
- Choose an open site, protected from strong, drying winds.
- Pick a spot in your landscape where air circulates freely, but not overbearing. This will reduce the risk of leaves becoming mildewed.
- Lilac shrubs need well-drained, organically rich soil.
- Avoid chalky spots, which may cause lime-induced chlorosis (leaves turn creamy yellow and die).
Opening Plant Material
- Container - Completely saturate all container plants by putting in a larger container of water until stops bubbling, then remove the plant from the container.
- Bare Root - Cut open the bundle (top and roots are tied) and separate all the plants. Soak roots in buckets of water until planted. Each plant type will be labeled separately for identification. Do not expose the roots to sun. They should never dry out. Keep roots covered. All bare-root plants must be trimmed when planted.
- Lilac Shrubs can be planted in March-November
- Dig a hole no deeper than the depth of the container and 6" or more wider on the sides.
- Slide plant from pot by tapping on the bottom of the pot.
- With shovel or knife trim bottom 2" off of the root ball for plants in plastic containers.
- Rotate the plant to the proper position. Never lift or move plants by the tops.
- Place the root ball in the hole.
- Adjust the plant height so the root crown is slightly higher than the ground.
- Place fertilizer packets into the bottom of the hole (if purchased). *Use Our Recommended Fertilizer
- Back-fill the hole with soil, making sure the top of the root ball is visible and slightly higher than the soil around it.
- Firm the soil around the plant. Water well to settle soil around the root ball.
- Water frequently when newly planted.
Planting Bare Root
- Dig a hole at least 6" wider and the same depth as the root mass. The crown or graft of the plant should be slightly higher than ground level where it was grown at the nursery.
- Trim off the broken roots and branches.
- Place fertilizer packets in hole (if purchased). Do not place other fertilizers in the planting hole. *Use Our Recommended Fertilizer.
- Spread the roots and fill halfway with soil, then water until soil settles completely saturating the soil and planting pit.
- Re-adjust plant and fill the hole with the rest of the soil.
- Back fill the balance of the soil and water well.
Pruning - After Planting
- Container - Although it is not essential for container plants to be pruned after planting, a light pruning to remove any broken branches during shipment and improve shape will help the looks of your new planting.
- Bare Root - Prune ALL bare root plants to reduce transplant shock and ensure success. Pruning should occur either before or as soon after planting as possible. All pruning should be done with a sharp pruning shears.
Pruning - Through-out the Season
- Prune Lilac shrubs in November & December.
- Cut out spent flowers when petals fade.
- Keep bushes youthful and blooming freely by pruning out a quarter of the oldest shoots each year in winter.
- Remove any basal suckers.
Watering - After Planting
- Plants typically take approximately 6 weeks to establish new roots in your soil. During this period, water plants as oft en as every 2-4 days at the start and at least a minimum of once per week.
- Beyond the 6 week establishment period, water once per week, unless rains occur.
Watering - Through-out the Season
- After the first season, plants should only be watered during extended periods without rain.
- How do you know if your plants need water? The easiest way to tell is to touch the soil around the roots. If it is moist, there is no need to water. If it is dry, give it a good soaking with the hose end (no nozzle) watering the soil only, not the leaves.
Go to our "Plant Features & Video Tab" for more information on container plants and how to plant them.
Special Features & Videos on Lilac Shrubs
Special Plant Features & Tips
- Plant March-November.
- Prune in November & December.
- Hardiness according to species.
- Apply a complete plant food or fish, blood and bone meal in spring and midsummer.
- If mildew strikes on your lilac bush, leaves are fleeted with powdery-white mold. Improve air flower by thinning crowded shoots and spraying with carbendazim, mancozen or sulfur when symptoms appear.
- Flowers in May and June.
- Fragrant trusses of lilac blossoms are a spring highlight.
- Syringa varieties bloom best in a sunny position.
|Item||Approx Weight (lbs.)||Approx Base Dimensions (diameter)||Approx Height|
|#7 Grow Bag**||35-50||14-16"||5-8'|
|#10 Grow Bag**||55-70||18"||6-8'|
|#15 Grow Bag**||65-80||22"||6-10'|
|#20 Grow Bag**||75-100||24"||8-12'|
|1 1/4" B&B**||250-500||22" for single stems, 28" for multiple stems||8-11'|
|1 1/2" B&B**||325-600||24" for single stems, 30" for multiple stems||10-12'|
|2" B&B**||500-700||28" for single stems, 32" for multiple stems||10-14'|
|2 1/2" B&B**||600-1000||30" for single stems, 36" for multiple stems||10-15'|
|3 1/2" B&B**||1000||36"||12-18'|
|#3 container*||Less than 35||10"||10"|
|Bare Root*||varies, but always lighter||no soil on roots||varies depending on item|
*#1 - #3 containers and bare root are the only items that can be shipped FedEx and/or by our delivery trucks (see below for more information regarding pick-up and local delivery.
**Any items over 100 Ibs., #5 - #20 containers or B&B can only be delivered by our trucks due to FedEx shipping weight and size restrictions. Our trusted trucks only deliver around a 100 miles radius from our corporate office in Waterloo, Wisconsin. Any item you order can be picked-up at our corporate office in Waterloo, Wisconsin or our new retail garden center Winterland Nursery for free (bare root orders cannot be picked up at Winterland due to lack of bare root coolers). See our estimated delivery schedule here.
Growing Zones: 3-7
|Bloom Time:||May - June|
|Color:||Blue, Green, Purple|
|Plant Size:||5' x 5'|
|Flower Color:||Purple & Blue|
|Soil Conditions:||Normal, Sandy, Clay, Acidic, Dry|