What to Plant in September in Montana
Here's what you can plant in Montana during September. Since Montana spans multiple USDA zones, planting dates vary by location. Find your zone below.
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Zone 3b
View full Zone 3b planting guide for September
Harvest
- Acorn Squash
- Ageratum
- Alliums
- Alpine Strawberries
- Amaranth
- Astilbe
- Bachelor's Button
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Butternut Squash
- Cabbage
- Calendula
- Catnip
- Cauliflower
- Celeriac
- Celery
- Celosia
- Chamomile
- Chickpeas
- Chives
- Collard Greens
- Comfrey
- Coreopsis
- Corn
- Cosmos
- Cucumber
- Dahlias
- Daylily
- Delicata Squash
- Echinacea (Purple Coneflower)
- Edamame
- Fava Beans
- Gaillardia (Blanket Flower)
- Garlic Chives
- Geraniums
- Gladiolus
- Green Beans
- Horehound
- Horseradish
- Hostas
- Hubbard Squash
- Hydrangeas
- Hyssop
- Impatiens
- Kabocha
- Kidney Beans
- Leeks
- Lemon Balm
- Lentils
- Lilies
- Lima Beans
- Lovage
- Marigolds
- Mint
- Nasturtium
- Onion
- Parsley
- Parsnip
- Peppers
- Petunia
- Phlox
- Pole Beans
- Portulaca
- Potatoes
- Pumpkin
- Romanesco
- Roses
- Salsify
- Salvia
- Savoy Cabbage
- Scarlet Runner Beans
- Sedum (Stonecrop)
- Shiso
- Snap Peas
- Snapdragon
- Soybeans
- Spaghetti Squash
- Squash (Summer)
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Corn
- Sweet Pea
- Tomatoes
- Valerian
- Vinca (Annual)
- Wax Beans
- Yarrow
- Zinnia
- Zucchini
Zone 4a
View full Zone 4a planting guide for September
Harvest
- Acorn Squash
- Ageratum
- Alliums
- Alpine Strawberries
- Amaranth
- Anise
- Astilbe
- Bachelor's Button
- Basil
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Butternut Squash
- Cabbage
- Calendula
- Cantaloupe
- Catnip
- Cauliflower
- Celeriac
- Celery
- Celosia
- Chamomile
- Chickpeas
- Chives
- Christmas Lima Beans
- Collard Greens
- Comfrey
- Coreopsis
- Corn
- Cosmos
- Crosne
- Cucumber
- Dahlias
- Daylily
- Delicata Squash
- Echinacea (Purple Coneflower)
- Edamame
- Fava Beans
- Fennel
- Fennel (herb)
- Gaillardia (Blanket Flower)
- Garlic Chives
- Geraniums
- Gladiolus
- Green Beans
- Ground Cherry
- Honeydew
- Horehound
- Horseradish
- Hostas
- Hubbard Squash
- Hydrangeas
- Hyssop
- Impatiens
- Kabocha
- Kidney Beans
- Leeks
- Lemon Balm
- Lentils
- Lilies
- Lima Beans
- Lovage
- Marigolds
- Melon
- Mint
- Nasturtium
- Onion
- Oregano
- Parsley
- Parsnip
- Peonies
- Peppers
- Petunia
- Phlox
- Pole Beans
- Portulaca
- Potatoes
- Pumpkin
- Romanesco
- Roses
- Rue
- Sage
- Salsify
- Salvia
- Savory
- Savoy Cabbage
- Scarlet Runner Beans
- Sedum (Stonecrop)
- Shallot
- Shiso
- Snap Peas
- Snapdragon
- Soybeans
- Spaghetti Squash
- Squash (Summer)
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Corn
- Sweet Pea
- Tarragon
- Thai Basil
- Thyme
- Tomatillo
- Tomatoes
- Valerian
- Vinca (Annual)
- Watermelon
- Wax Beans
- Yarrow
- Zinnia
- Zucchini
Zone 4b
View full Zone 4b planting guide for September
Harvest
- Acorn Squash
- Ageratum
- Alliums
- Alpine Strawberries
- Amaranth
- Anise
- Astilbe
- Bachelor's Button
- Basil
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Butternut Squash
- Calendula
- Cantaloupe
- Catnip
- Celeriac
- Celery
- Celosia
- Chamomile
- Chickpeas
- Chives
- Christmas Lima Beans
- Comfrey
- Coreopsis
- Corn
- Cosmos
- Crosne
- Cucumber
- Dahlias
- Daylily
- Delicata Squash
- Echinacea (Purple Coneflower)
- Edamame
- Fennel
- Fennel (herb)
- Gaillardia (Blanket Flower)
- Garlic Chives
- Geraniums
- Gladiolus
- Green Beans
- Ground Cherry
- Honeydew
- Horehound
- Horseradish
- Hostas
- Hubbard Squash
- Hydrangeas
- Hyssop
- Impatiens
- Kabocha
- Kidney Beans
- Leeks
- Lentils
- Lilies
- Lovage
- Marigolds
- Melon
- Mint
- Nasturtium
- Onion
- Oregano
- Parsnip
- Peppers
- Petunia
- Phlox
- Pole Beans
- Portulaca
- Potatoes
- Pumpkin
- Roses
- Rue
- Sage
- Salsify
- Salvia
- Savoy Cabbage
- Sedum (Stonecrop)
- Shallot
- Shiso
- Snap Peas
- Snapdragon
- Soybeans
- Spaghetti Squash
- Squash (Summer)
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Pea
- Tarragon
- Thai Basil
- Thyme
- Tomatillo
- Tomatoes
- Valerian
- Vinca (Annual)
- Watermelon
- Wax Beans
- Yarrow
- Zinnia
- Zucchini
Zone 5a
View full Zone 5a planting guide for September
Harvest
- Acorn Squash
- Ageratum
- Alpine Strawberries
- Amaranth
- Anise
- Astilbe
- Bachelor's Button
- Basil
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Butternut Squash
- Calabash
- Calendula
- Catnip
- Celeriac
- Celery
- Celosia
- Chives
- Christmas Lima Beans
- Comfrey
- Coreopsis
- Cosmos
- Crosne
- Cumin
- Dahlias
- Daylily
- Delicata Squash
- Echinacea (Purple Coneflower)
- Eggplant
- Feverfew
- Gaillardia (Blanket Flower)
- Garlic Chives
- Geraniums
- Gladiolus
- Ground Cherry
- Honeydew
- Horehound
- Horseradish
- Hostas
- Hot Peppers
- Hubbard Squash
- Hyacinths
- Hydrangeas
- Hyssop
- Impatiens
- Kabocha
- Kidney Beans
- Lavender
- Leeks
- Lemon Thyme
- Lilies
- Lovage
- Marigolds
- Melon
- Mint
- Nasturtium
- Onion
- Oregano
- Parsnip
- Peppers
- Petunia
- Phlox
- Portulaca
- Potatoes
- Pumpkin
- Roses
- Rue
- Sage
- Salsify
- Salvia
- Sedum (Stonecrop)
- Shallot
- Snapdragon
- Soybeans
- Spaghetti Squash
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Pea
- Sweet Potatoes
- Tarragon
- Thai Basil
- Thyme
- Tomatillo
- Tomatoes
- Valerian
- Vinca (Annual)
- Watermelon
- Winter Melon
- Yarrow
- Zinnia
Zone 5b
View full Zone 5b planting guide for September
Harvest
- Ageratum
- Alpine Strawberries
- Amaranth
- Anise
- Astilbe
- Bachelor's Button
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Butternut Squash
- Calabash
- Calendula
- Celeriac
- Celery
- Celosia
- Chives
- Comfrey
- Coreopsis
- Cosmos
- Crosne
- Cumin
- Dahlias
- Daylily
- Echinacea (Purple Coneflower)
- Eggplant
- Feverfew
- Gaillardia (Blanket Flower)
- Garlic Chives
- Geraniums
- Gladiolus
- Ground Cherry
- Honeydew
- Horehound
- Horseradish
- Hostas
- Hot Peppers
- Hubbard Squash
- Hyacinths
- Hydrangeas
- Hyssop
- Impatiens
- Lavender
- Leeks
- Lemon Thyme
- Lilies
- Lovage
- Marigolds
- Mint
- Nasturtium
- Onion
- Oregano
- Peppers
- Petunia
- Phlox
- Portulaca
- Potatoes
- Pumpkin
- Roses
- Rue
- Sage
- Salvia
- Sedum (Stonecrop)
- Shallot
- Snapdragon
- Soybeans
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Pea
- Sweet Potatoes
- Tarragon
- Thyme
- Tomatillo
- Tomatoes
- Valerian
- Vinca (Annual)
- Winter Melon
- Yarrow
- Zinnia
Zone 6a
View full Zone 6a planting guide for September
Harvest
- Ageratum
- Alpine Strawberries
- Amaranth
- Anise
- Astilbe
- Bee Balm
- Begonias
- Belgian Endive
- Black Beans
- Black-eyed Susan
- Brussels Sprouts
- Calabash
- Celosia
- Coreopsis
- Cosmos
- Crosne
- Cumin
- Dahlias
- Daylily
- Echinacea (Purple Coneflower)
- Eggplant
- Feverfew
- Gaillardia (Blanket Flower)
- Geraniums
- Gladiolus
- Ground Cherry
- Honeydew
- Horseradish
- Hostas
- Hot Peppers
- Hubbard Squash
- Hyacinths
- Hydrangeas
- Impatiens
- Leeks
- Lilies
- Loofah
- Luffa
- Marigolds
- Nasturtium
- Peppers
- Petunia
- Phlox
- Portulaca
- Potatoes
- Pumpkin
- Roses
- Salvia
- Sedum (Stonecrop)
- Soybeans
- Squash (Winter)
- Strawberries
- Sunchoke
- Sunflower
- Sweet Pea
- Sweet Potatoes
- Tomatillo
- Tomatoes
- Tulips
- Valerian
- Vinca (Annual)
- Winter Melon
- Yarrow
- Zinnia
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