
The common lilac tree is a beautiful addition to any garden, with its vibrant purple flowers and fragrant scent. They can grow up to 20 feet tall.
To grow a healthy common lilac tree, make sure to plant it in well-draining soil with a slightly acidic pH, around 6.0 to 6.5. This will help prevent root rot and promote healthy growth.
Lilac trees prefer full sun to partial shade, so choose a location that gets at least 6 hours of direct sunlight per day. This will ensure they produce plenty of flowers.
Water your lilac tree regularly, but avoid overwatering, which can lead to root rot and other problems.
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Growing and Planting
Growing conditions can vary based on variety and container size, with larger containers indicating more established root systems and faster landscape establishment.
To plant a lilac, choose a sunny location with well-drained, fertile, humus-rich soil that is alkaline to neutral. Lilacs prefer chalky or alkaline soils and can thrive in urban environments.
The best time to plant lilac is in autumn or spring, when the soil is warm and not waterlogged or frozen. Avoid planting during summer if possible as it will be harder for the plant to establish when conditions are dry and hot.
Here are some key considerations for planting lilac:
- Full Sun
- Moderately Moist Well-Drained Soil
- Prune After Flowering Only
- Mulch 3-4 Inches Deep
- Deer Resistant
Growing Conditions
Growing conditions play a significant role in determining the health and beauty of your lilac plant. Plant size can vary based on variety and growing conditions.
To ensure your lilac thrives, it's essential to provide it with the right environment. A larger container generally means more established root systems and faster landscape establishment.
Lilacs can tolerate a range of soil conditions, but they prefer well-drained soil to prevent waterlogged roots. In fact, they can even do well in urban environments.
A sunny location is also crucial for lilacs, which require full sun to bloom beautifully. If you're looking to create a stunning display of flowers, plant your lilac in a spot that receives at least 6 hours of direct sunlight per day.
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Here are some key growing conditions to keep in mind:
- Container size: Larger containers mean more established root systems and faster landscape establishment
- Soil: Well-drained soil is essential to prevent waterlogged roots
- Sunlight: Full sun is required for beautiful blooms
In terms of hardiness, lilacs are incredibly cold tolerant and can thrive in USDA hardiness zones 2-7. This means they can withstand severely cold winters and even do best in areas with significant frost.
Taking Cuttings
You can propagate lilacs by softwood cuttings, and the best time to take them is between March and August.
To increase your chances of success, make sure to take cuttings from the softwood of the plant, which is the new growth that appears in the spring.
Lilac cuttings can be taken in the spring, and it's best to pot them up indoors and grow them on before planting outside.
If you're new to taking cuttings, don't worry, it's a relatively simple process that requires some basic gardening skills.
Propagating lilacs from cuttings is a great way to share plants with friends and family, or to create new plants for your own garden.
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Here are the basic steps to take lilac cuttings:
- Take 10-15cm stem cuttings from the softwood of the plant.
- Remove lower leaves, leaving only the top two or three sets of leaves.
- Plant the cuttings in a pot filled with a good quality compost.
- Water well and keep the soil consistently moist.
- Keep the pot in a bright, sunny spot, but not in direct sunlight.
With a little care and attention, you should be able to successfully propagate your lilac plants from cuttings and enjoy more of these beautiful flowers in your garden.
Care and Maintenance
Common lilac trees are quite hardy and can thrive in areas with significant frost in wintertime. They're also tolerant of soil conditions, making them a great choice for urban environments.
To keep your lilac tree healthy, make sure it gets full sun and moderately moist, well-drained soil. Prune it after flowering only, as pruning too early can reduce blooming.
Mulch around the base of the tree to retain moisture and suppress weeds. A 3-4 inch deep layer of mulch is ideal. And if you're concerned about deer, rest assured that common lilac trees are deer resistant.
Here are some key care tips to keep in mind:
- Full Sun
- Moderately Moist Well-Drained Soil
- Prune After Flowering Only
- Mulch 3-4 Inches Deep
- Deer Resistant
How to Care for
Lilacs are relatively low-maintenance shrubs, but they do need some TLC to thrive.

Water them regularly until they're established, especially during hot weather.
Mulch your lilac annually in spring by spreading a layer of organic matter, such as well-rotted garden compost, around the plant, leaving a gap around the stem.
To keep your lilac looking its best, prune it after flowering only. This will encourage new growth and prevent the plant from becoming leggy.
Here are some key care tips to keep in mind:
- Full Sun
- Moderately Moist Well-Drained Soil
- Prune After Flowering Only
- Mulch 3-4 Inches Deep
- Deer Resistant
By following these simple care tips, you'll be able to enjoy your lilac's beautiful blooms and fragrance for years to come.
Pests and Diseases
Lilacs are generally pest-free, but may be attacked by lilac leaf mining moths or thrips, which don't usually harm the plant's vigour.
These pests can cause minor issues, but regular monitoring can help catch any problems early on.
Lilac blight is a more serious issue, causing die back, distorted and blemished leaves, and ultimately, leaf drop. Blossoms can also be affected, turning brown and limp.
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Pruning out the affected branches, well beyond signs of infection, in dry sunny weather can help control the spread.
Honey fungus can also affect lilacs, but it's not as common.
If you notice suckers growing from the base of your lilac, you can tear or wrench them away from midsummer onwards to prevent them regrowing.
Varieties and Selection
There are many varieties of common lilac trees to choose from, with over 20 different species and countless hybrids.
Some popular varieties include 'Miss Kim', 'Bloomerang', and 'Palibin', which are known for their compact growth and stunning purple flowers.
The 'Miss Kim' variety is particularly notable for its cold hardiness, thriving in zones as low as 3, making it a great option for gardeners in cooler climates.
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Varieties to Grow
Growing your own variety of tomatoes can be a fun and rewarding experience. There are many varieties to choose from, each with its own unique characteristics.

Some popular varieties include 'Brandywine', 'Cherokee Purple', and 'Beefsteak', which are known for their large size and rich flavor. 'Roma' and 'Plum' tomatoes are great for canning and sauces.
If you're looking for a cherry tomato variety, 'Sungold' and 'Red Cherry' are excellent choices. They're sweet and bursting with flavor, perfect for snacking.
For a more exotic flavor, try growing 'Yellow Pear' or 'Orange Roma' tomatoes. They add a pop of color to any dish and are sure to impress your friends and family.
Keep in mind that different varieties have different growth habits and requirements, so be sure to research the specific needs of the variety you choose.
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Red Pixie
The Red Pixie is a compact lilac that's perfect for small gardens or large pots. It's a great option if you want a low-maintenance shrub that still packs a punch in terms of fragrance and beauty.
This lilac variety is known for its masses of fragrant pink flowers that open from red buds. It's a unique and eye-catching feature that's sure to attract attention in your garden.

The Red Pixie is a relatively small shrub, growing to a height and spread of 1.8m x 1.8m. This makes it a great choice for smaller gardens or for adding a pop of color to a larger space.
One of the best things about the Red Pixie is its ability to bloom again in late summer or early autumn, providing a second flush of flowers for you to enjoy.
Primrose
The Primrose variety of lilac is a standout, with its white flowers maturing to a beautiful cream-yellow hue. It's hard to beat the exceptional lilac scent that fills the air.
Growing this variety is relatively easy, with a mature height and spread of 3 meters.
Madame Lemoine
If you're looking for a beautiful and classic variety, consider Syringa vulgaris 'Madame Lemoine'. It's a large double white-flowered variety that's been around since 1890 and is still a popular choice today.
This variety was bred by the French breeder Victor Lemoine, and it's a great option if you want a statement piece in your garden. It can grow up to 7m x 7m in size.
You can buy Syringa vulgaris 'Madame Lemoine' from reputable suppliers like Primrose and Crocus.
If you're short on space, you might want to consider a more compact variety like Syringa vulgaris 'Charles Joly', which is only 4m x 4m in size.
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Purchasing and Planting
To purchase a lilac, head to a garden centre or check online for the best selection. You can find a wide variety of lilacs to choose from.
Before buying, make sure to check the ultimate height and spread of the plant, as these can vary considerably. This will help you choose a lilac that fits your space and needs.
When planting your lilac, dig a generous hole and plant it to the level of the soil line. Back-fill and firm down the soil gently around the plant, then water in well.
Here are some additional tips to keep in mind when planting your lilac:
- Plant in a hole that is at least 60cm deep and wide to give the roots room to grow.
- Mulch after planting to help retain moisture in the soil.
- Choose a pot with good drainage if you're growing your lilac in a container.
Seasonal Availability
Bare root plants are typically available seasonally when dormant. This is because they're less prone to damage during shipping and handling when they're not actively growing.
Container plants, on the other hand, are available throughout the growing season, making them a great option for those who want to plant at any time.
Some specific varieties of plants may have limited availability in certain sizes, so it's always a good idea to check ahead of time to see what options are available.
If you're planning to purchase plants, make sure to check the seasonal availability of the varieties you're interested in.
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How to Plant

To plant your lilac, dig a generous hole to the level of the soil line, and back-fill the soil gently around the plant. Water in well to ensure the soil is moist.
The best time to plant lilac is in autumn or spring, when the soil is warm and not waterlogged or frozen. This allows the plant to establish itself without struggling with dry and hot conditions.
To prepare the soil, choose a pot that is at least 60cm in diameter if you're growing lilac in a container. Plant into John Innes No.3 compost with some sand or grit added for drainage.
Mulch after planting to help retain moisture in the soil. This will also help your lilac thrive in urban environments.
If you're looking to propagate your lilac, you can dig up suckers and replant them elsewhere. Simply dig up the sucker, cutting it away from the parent plant with some roots, and plant it in its new location. Water well to ensure the soil is moist.
Here's a quick guide to planting your lilac:
- Dig a generous hole to the level of the soil line
- Back-fill the soil gently around the plant
- Water in well
- Mulch after planting
- Choose a pot that is at least 60cm in diameter for container planting
Where to Buy
If you're looking to add some beauty to your garden, you'll want to know where to buy lilac plants online.
You can find a variety of lilac plants for sale online, but it's worth noting that availability might vary depending on your location.
One option is to buy Syringa vulgaris 'Primrose' from Marshalls, which is a great choice for gardeners who want a classic lilac variety.
If you're interested in the Syringa vulgaris 'Charles Joly' variety, you can find it on Crocus and Thompson & Morgan websites.
Both of these retailers offer a reliable way to purchase lilac plants online and have them shipped to your doorstep.
Here are some specific online retailers that sell lilac plants:
- Marshalls: Buy Syringa vulgaris 'Primrose'
- Crocus: Buy Syringa vulgaris 'Charles Joly'
- Thompson & Morgan: Buy Syringa vulgaris 'Charles Joly'
Buying a Tree Advice
When buying a tree, it's essential to find a reputable seller. Check online for the best selection, as it often offers a wider range of options.
Consider the mature size of the tree, as it can vary significantly. For example, some trees can grow up to 50 feet tall, while others may only reach 10 feet.
Always inspect the tree for signs of damage and disease before making a purchase. This will ensure you're getting a healthy tree that will thrive in its new environment.
If you're buying a tree from a garden centre, make sure to check the plant's condition carefully. Look for any visible signs of pests, diseases, or physical damage.
Troubleshooting
If your lilac isn't flowering in the spring, it might be due to poorly drained soil or not enough sunshine – lilacs need a sunny spot.
Poorly drained soil can cause root rot and other problems, so make sure your lilac has good drainage.
Late frosts can also spoil the flowers, so if you live in an area prone to frosts, consider planting a lilac that blooms a bit later in the season.
Lilacs are also susceptible to pests like the lilac borer, which can cause significant damage if left unchecked.
Verticillium wilt is another disease that can affect lilacs, causing wilting and discoloration of the leaves.
Tolerant of salt and heavy clay soil, lilacs can thrive in areas with challenging soil conditions.
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