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Yes, you can plant lavender in August, and it’s actually a fantastic time to get those fragrant beauties into your garden.
While many folks think spring is the only window for planting lavender, August offers its own set of golden opportunities for successful lavender planting.
The key to planting lavender in August is understanding that the warm soil and long daylight hours can help your plants establish strong roots before the cooler weather rolls in.
If you’ve been wondering whether you can plant lavender in August, the answer is a confident yes, provided you give your plants a little extra care during their first few weeks.
In this post, we’ll dig into why August is a smart choice, the best lavender varieties for late-summer planting, and the essential steps to help your lavender thrive.
Let’s explore how to make planting lavender in August work beautifully for you.
Why You Can Plant Lavender In August Successfully
Planting lavender in August isn’t just a last-minute gardening gamble, it’s a strategy that experienced growers swear by for many good reasons.
The summer heat might seem like an enemy, but for lavender, it’s actually a welcome friend that encourages rapid root development.
Let’s break down why August is a prime time for lavender planting.
1. Warm Soil Promotes Faster Root Growth
Lavender absolutely loves warm soil, and August delivers that in spades.
When you plant lavender in August, the soil temperature is still high from the summer sun, which signals to the roots that it’s time to grow aggressively.
Unlike spring planting when the ground may still be cool and damp, August soil is consistently warm, helping new lavender plants establish a robust root system quickly.
This early root establishment is critical because it means your lavender will be better equipped to survive the upcoming winter months.
So, yes, you can plant lavender in August, and the warm earth is one of the biggest reasons why it works so well.
2. Longer Days Offer More Photosynthesis
Even though the days start to shorten slightly in late August, there’s still plenty of sunshine available for your new lavender plants.
More sunlight means more photosynthesis, which fuels the energy needed for root and foliage growth.
When you plant lavender in August, you’re giving it a head start that spring-planted lavender simply doesn’t have.
This is also why lavender planting in August is a favorite for gardeners who want to see blooms sooner the following year.
The extra sunlight exposure helps the plant store energy before dormancy, making it stronger and more resilient.
3. Less Stress from Pests and Diseases
August often brings a slight lull in certain garden pests that plague spring planting.
Many common lavender pests, like aphids and spittlebugs, have already had their peak season by late summer.
This means planting lavender in August can actually reduce the risk of pest infestations during the critical establishment phase.
Additionally, the drier conditions typical of August help prevent fungal diseases that thrive in cool, moist spring soil.
So, if you can plant lavender in August, you might be dodging a whole host of problems that spring planters have to battle.
4. Ideal for Mild Winter Climates
If you live in a region with mild winters, August is arguably the absolute best time for lavender planting.
In zones 7 through 9, the roots will continue to grow slowly through the fall, giving the plant a massive advantage come spring.
Even in cooler zones, planting lavender in August gives the plant six to eight weeks to settle in before the first hard frost.
This head start is all lavender needs to emerge as a strong, healthy plant next season.
How To Plant Lavender In August: Step-By-Step Guide
Now that you know you can plant lavender in August, let’s talk about the best way to actually do it.
Lavender is a tough plant, but it has very specific requirements when it comes to soil and watering, especially during a hot August.
Follow these steps to give your lavender the best possible start.
1. Choose The Right Lavender Varieties
Not all lavender is created equal when it comes to August planting.
English lavender (Lavandula angustifolia) is your best bet because it’s the hardiest and most adaptable.
French and Spanish lavender are more tender and might struggle if you plant lavender in August in cooler zones.
For southern gardeners, look for heat-tolerant varieties like ‘Phenomenal’ or ‘Grosso’ that thrive in hot summer conditions.
2. Prepare The Soil With Gritty Drainage
Lavender hates wet feet more than anything, and August thunderstorms can be intense.
Before you plant lavender in August, amend your soil with coarse sand or small gravel to ensure excellent drainage.
Lavender prefers slightly alkaline soil, so if your soil is acidic, mix in a little garden lime.
Dig a hole that’s twice as wide as the root ball but no deeper, as lavender hates being planted too low.
3. Water Deeply But Infrequently
The biggest mistake people make when they plant lavender in August is overwatering.
Yes, August is hot, but lavender is a Mediterranean native that craves dry conditions.
Water deeply right after planting to settle the soil, then wait until the top inch of soil is completely dry before watering again.
This might mean watering every two to three days in extreme heat, but always err on the side of too little water rather than too much.
4. Apply A Light Mulch To Conserve Moisture
While lavender loves dry soil, the roots still need some protection from the scorching August sun.
Apply a thin layer of white gravel or crushed stone as mulch, which reflects heat and keeps the root zone cool.
Avoid organic mulches like wood chips or bark, as these retain moisture and can cause root rot.
This simple step makes planting lavender in August much more forgiving during heatwaves.
Care Tips After Planting Lavender In August
Once your lavender is in the ground, the work isn’t done.
The first month after planting lavender in August is the most critical for survival.
Here’s how to help your plants thrive through the rest of summer and into fall.
1. Pinch Off Any Flower Buds
If your lavender came with blooms, pinch them off as soon as you plant.
You might hate sacrificing those pretty purple flowers, but it’s essential for root development.
When you plant lavender in August, the plant’s energy should go downwards, not upwards.
Removing the flowers forces the plant to focus on building a strong root system before winter.
2. Watch The Weather Forecast
August can bring sudden heatwaves, so keep an eye on the forecast.
If a triple-digit heatwave hits within two weeks of planting lavender in August, provide temporary afternoon shade.
A simple shade cloth or an umbrella can prevent your young lavender from getting scorched.
3. Fertilize Sparingly Or Not At All
Lavender is a low-feeding plant, and too much fertilizer can actually kill it.
When you plant lavender in August, skip the fertilizer entirely for the first season.
The only exception is if your soil is severely depleted, in which case a light top-dressing of compost is plenty.
Over-fertilizing leads to lush but weak growth that won’t survive the winter.
So, Can You Plant Lavender In August?
Yes, you can plant lavender in August, and with the right technique, it can be even more successful than spring planting.
Planting lavender in August works because of the warm soil, ample sunshine, and reduced pest pressure.
Just remember to choose hardy varieties, ensure perfect drainage, and resist the urge to overwater.
If you follow these steps, planting lavender in August will reward you with a robust, fragrant plant that’s ready to explode with blooms next spring.
So don’t wait for next year, get out there and plant lavender in August while the soil is still toasty and full of life.
Your future self, and your garden, will thank you for giving lavender this late-summer head start.