Planting, Growing, and Harvesting Basil
Planting
Basil will grow best in a location that gets 6 to 8 hours of full sun daily, though it can perform well in partial sun, too.
Soil should be moderately fertile and moist but well-draining. Basil works great in containers or raised beds, as these allow for better drainage. The pH of the soil should ideally be in the range of 6.0 to 7.5 (slightly acidic to neutral).
If you plan on cooking with these plants, plant in clean soil, don’t use insecticides, and grow them away from driveways and busy streets so exhaust won’t settle on the plants.
When to Plant Basil
- To get a jump on the season, start the seeds indoors 6 to 8 weeks before transplanting outside. (See local frost dates.)
- To plant outside, wait until the soil has warmed to at least 50°F (10°C)—preferably around 70ºF (21°C) for best growth. Nighttime temperatures shouldn’t drop below 50°F (10°C).
- Don’t rush basil. Without heat, the plant won’t grow well!
How to Plant Basil
- If you are sowing seeds directly into the ground, sow no more than 1/4-inch deep. Seeds should germinate within 5 to 7 days. Once they have developed 2 to 3 pairs of true leaves, transplant them.
- If you are planting the germinated seedlings or starter plants in the ground, spaced 10 to 12 inches apart; basil should grow to about 12 to 24 inches in height.
- A 2- to 3-inch mulch of compost or ground-up leaves retains soil moisture and minimizes weeds around the plants.
- Tomatoes make great neighbors for basil plants in the garden—and on the plate—so many gardeners will plant the two warm-weather friends around the same time.
Growing
How to Grow Basil
- Make sure that the soil is moist. Basil plants like moisture.
- If you live in a hot area, use mulch around the plants (the mulch will help hold in moisture and suppress weeds).
- During the dry periods in summer, water the plants freely.
- After the seedlings have produced their first six leaves, prune above the second set. This encourages the plants to start branching, resulting in more leaves for harvest.
- Every time a branch has six to eight leaves, repeat pruning the branches back to their first set of leaves.
- Fertilize sparingly throughout the season with a 5-10-5 fertilizer.
- After about 6 weeks, pinch off the center shoot to prevent early flowering. If flowers do grow, just cut them off.
- If the weather is going to be cold or if a sudden frost is imminent, be sure to harvest your basil beforehand, as the cold temperatures will destroy your plants.
- Cinnamon basil, to add a hint of cinnamon to a dish
- Purple basil adds some nice color to your garden (when steeped in white vinegar, it creates a beautiful color)
- Thai basil adds a sweet licorice flavor to a dish.
Cooking Notes
Make herbal vinegar using basil; it retains the flavor and makes a great gift! See how to make herbal vinegar.
Catherine Boeckmann
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I want to grow basil on a large commercial scale in a greenhouse, I would like to know how much yield can we expect per plant, because we are planning per single plant yield. Not on a Area basis.
Hello, I want to cite this page and just want to know the date it was published
The page was most recently updated on July 20, 2017.
I was thinking it is downy mildew! But I am just not sure! I hope you could help and rescue my sweet basil! Thank you in advance for reading my post first of all. So I live in north Irving, Texas state ( Dallas area). The basil is been doing good but recently last few week I have noticed black spots on the random leaves! I water the plant in the morning around 7:30 am in the morning and only around the soil. I have seen these spots even on the top of the plant where there is no way of water splattering from the soil to the leaves! And I see that the leaves are a bit yellowish but not yellow! And leaves sizes have shrinks somehow!
It’s not uncommon for basil, a relatively delicate annual, to begin to fail. It’s impossible for us to know exactly why. If it’s downy mildew there is nothing you can do about it. It can be brought in on transplants, in infected seed, or as airborne spores.
Are you letting the soil dry out before watering? Too much water can drown the plants. Are they getting adequate sun? Too much water, not enough sun——and heat——can cause it to fail.
And it could be something else, too.
A reader writes, Sounds like it could be spider mites. They can look brown with black spots…they’re leaf damage leaves brown thinning with black specks. Another reader suggests it could be whiteflies. Click here for more: https://www.almanac.com/pest/whiteflies
It could be aphids. Read more about these here: https://www.almanac.com/pest/aphids
We hope this helps.
Hello,
I had recently purchased a basil plant a cople of days ago at my local Farmer's Market and the plant is getting tall. I live in Southeastern Nebraska. Should I grow it indoors or would be allright outdoors? I have a garden and I am thinking of planting in my garden. I have currently rn out of the soil that helps veggies and flowers grow well and strong but I do have miracle grow and the dirt I have in the garden is brown dirt that my mom has told me wors well and it has formy surgar snap peas and flowers. Iwas told to keep the plant in its cup for a few days and today I need to move it. For me should I plant it indoors or outside?
You can transplant your basil plant outdoors when temperatures are in the 70s in the day and above 50 at night. This annual likes warm temperatures. Choose a sunny spot that gets about 6 to 8 hours of sun. It likes rich, moist, well-drained soil. A mulch, such as shredded leaves or untreated grass clippings or straw, can help to keep soil moist between waterings. Miracle-Gro fertilizer can help give your plant nutrients if your soil lacks them, but will not help with drainage or other issues, if there are any. Certainly worth a try!
hi, I'm doing an experiment on basil seedlings at school and I am looking at the growth rate. if you could help me out on average how many cm do basil seeds grow per day?
Hi! Just transplanted a already growing basil plant to a bigger container on my balcony! It has been growing fine from what I can tell but my leaves have brown spots on them!
Brown spots on basil can indicate a variety of issues. Avoid watering basil leaves from overhead; only water at the soil level and don’t let water or soil splash on leaves.
