What to Plant in September: Vegetables and Flowers To Sow And Grow

There are many options you could consider when looking at what to plant in September, as even though most plant growth seasons fall during spring, autumn does present some beautiful additions to your gardens.

What to Plant in September

From evergreen shrubs to bulbous flowering plants, here are a few of the best plants for September. 

Brussel Sprouts 

Brassica oleracea var. gemmifera
Botanical Name Brassica oleracea var. gemmifera
Common Names Brussel sprouts 
Origin Brussels, Belgium,
Family Brassica oleracea
Plant Type Biennial, Annual Vegetable 

The Brassica oleracea var. Gemmifera or Brussel sprout is a popular edible vegetable that grows well in cooler climates making it an awesome vegetable for planting in September. They are related to cabbageS and are also rich in vitamins C and K. 

This slow-growing vegetable requires rich, well-draining soil, frequent watering, and full sunlight exposure to thrive. 


Botanical Name Aster
Common Names Asters
Origin Eurasia, Africa, and America
Family Asteraceae
Plant Type Perennial, flowering plants 

Asteres form a great genus filled with over 170 flowering perennial species. They are often regarded as the ‘Stars of the fall/autumn garden, as they are known to bloom during the autumn season. 

It helps to grow your asters in a garden with access to full sunlight and moderate watering as overwatering can open the plant up to root rot.


Botanical Name Allium sativum
Common Names Garlic
Origin China 
Family Amaryllidaceae
Plant Type Bulbous, flowering perennial 

Garlic is a perfect veggie to plant in September as they flourish in cool climatic conditions. This popular spice plant shares close similarities with Onions and is a member of the Amaryllidaceae family. 

The Garlic plant is a low-maintenance crop that does well in areas with full sunlight, rich moist soil, and average watering frequency. 

Calendula officinalis

Calendula officinalis
Botanical Name Calendula officinalis 
Common Names Pot Marigold 
Origin East Mediterranean, South Europe 
Family Asteraceae
Plant Type Annual, Herbaceous flower

This 2 feet tall vegetable plant with yellow flowers are an excellent addition to a September garden. The Calendula makes a great ornamental plant and its petals are edible, with them being used in salads. 

Grow Calendulas in areas with partial shade on rich and fertile soil with great draining capability. 


Spinacia oleracea
Botanical Name Spinacia oleracea
Common Names Spinach
Origin Western and Central Asia 
Family Amaranthaceae
Plant Type Leafy Flowery Green plant

Spinach is a fast-growing vegetable that is packed full of nutrients and is grown as food and medicinal crops. They love the cool of September month and can even tolerate extreme cold. 

Grow spinach in a garden with access t full or direct sunlight. They can also survive in partial sunlight however, ensure you water them often and grow them on rich well-draining soil.


Raphanus sativus
Botanical Name Raphanus sativus
Common Names Radish 
Origin Asia
Family Brassicaceae
Plant Type Biennial, Annal edible root 

The Raphanus sativus or radish is a popular vegetable that is often used in salad dishes. They are fast-growing root crops that are a major source of vitamins as well as potassium and calcium. 

A shallow rich soil would be ideal for the radish plant, be sure to provide them with bright but indirect sunlight and regular watering.


Botanical Name Narcissus
Common Names Daffodils 
Origin Northern Europe
Family Amaryllidaceae
Plant Type Perennial Flowering plant 

Although they are regarded as ‘spring flowers, you can grow them in late fall and expect them to bloom in early spring. Their vibrant flowering blooms are a beauty to any garden and they help keep rabbits and chipmunks away because they are poisonous when eaten. 

They love direct sunlight but can thrive in partial shade. Also, regular watering would be required, and well-draining soil. 


Daucus carota subsp. sativus
Botanical Name Daucus carota subsp. sativus
Common Names Carrot
Origin Asia and Europe
Family Apiaceae
Plant Type Root Vegetable 

Plant your carrots between the end of summer and the start of fall as they love the cooler climate as opposed to extreme heat or extreme cold. 

They are easy to grow and would require free-draining soil, lots of sunlight, and frequent watering to thrive. The soil type should be a little acidic.  


Botanical Name Paeonia 
Common Names Peony
Origin Asia, North America and Europe
Family Paeoniaceae
Plant Type Fragrant flowering plant

Peonies should be planted during the fall or autumn season so they can produce blooms in the spring season. They are lovely ornamental plants that are used in most flowering beds. 

Grow your Peonies in shallow, well-draining soil with plenty of sunlight and average watering.


Lactuca sativa
Botanical Name Lactuca sativa
Common Names Lettuce
Origin Mediterranean area
Family Asteraceae
Plant Type Annual vegetable plant 

The lettuce or Lactuca sativa is a popular plant that is often used in salads as dressing. They are fast growers and do well in cooler climates. Plant the lettuce at the start of fall for proper growth. 

Grow your lettuce in moist, well-draining soil in full direct sunlight and with watering done once every 2 weeks. Overwatering can harm the lettuce plant. 

Frequently Asked Questions

What are the best flowers to plant in September?

Most species from the Aster genus are best grown in September.

Why are my radishes flowering?

Radishes are known to produce flowers, so it is natural 

What vegetables are in season in September?

Vegetables like Beets, Carrots, and Celery are known to grow in September. 

Can I plant carrots in September?

Yes, but it helps to grow or plant them in the late summer as they love cool climates. 

What flowers are in season in September?

Plants like Dahlia, Cosmos, and Celosia are known to produce flowers in the month of September.

Marijke Puts
About Marijke Puts
Marijke Puts has Bachelor’s Degree in Communication Science and is from The Netherlands. She has a certified master gardener and loves everything about houseplants and gardening.

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