Plant Care Lilac


About Lilac

Common lilac is a highly fragrant, spring-flowering shrub or small tree. The pungently sweet fragrance is delightful but can be overpowering to some asthmatics. Most plants are grafted so suckers should be removed from rootstock to maintain the appearance and prevent unwanted spread.


Syringa vulgaris

Also known as

Common lilac

How to care for Lilac


How often to water your Lilac

Water needs for Lilac
0.5 cups
every 9

Lilac needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Lilac

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Lilac in your home

Light needs and placement for plant Lilac: 1ft from a window
1ft or less from
a window

Lilac love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Lilac does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Lilac in your home 🏡.


How to fertilize Lilac

Nutrient, fertilizer, and repotting needs for Lilac: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Lilac after it doubles in size or once a year—whichever comes first.

Difficulty Level

Lilac is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Lilac



Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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