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Zone 5B — June

What to Plant in June in Zone 5B

June in Zone 5B: 0 crops to start indoors, 0 to plant or direct sow outside, and 96 entering harvest window. Last frost averages May 4. Reference city: Des Moines, IA.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
0 Start Indoors
0 Plant Outside
96 Harvest
Frost risk: Cleared

Frost season has cleared in Zone 5B. The last spring frost typically passed by May 4, and the very latest 10% chance closed by May 18. Tender crops are safe to plant out.

See full Zone 5B frost outlook

Start Indoors in June

Nothing to start seeds indoors in June for Zone 5B.
Next window: January — 1 variety, including Green Onion.

Plant Outside in June

Nothing to plant or sow outside in June for Zone 5B.
Next window: July — 2 varieties, including Nantes Carrot (fall planting), Sugar Snap Pea (fall planting).

Harvest in June

Plant Type Planted / Sown Harvest Window
Broadleaf Full Heart Batavian Endive lettuce Mar 28 Jun 21 – Jun 26
Candy Onion allium Mar 30 Jun 28 – Jul 8
Crisphead Lettuce lettuce Mar 28 Jun 4 – Jun 11
Georgia Southern Collard Greens lettuce Mar 28 Jun 6 – Jun 21
Iceberg Lettuce lettuce Mar 28 Jun 4 – Jun 11
Morris Heading Collard lettuce Mar 28 Jun 11 – Jun 16
Rapini Broccoli Raab brassica Mar 28 Jun 1
Romaine Lettuce lettuce Mar 28 Jun 1 – Jun 11
Verona Red Chicory lettuce Mar 28 Jun 21 – Jun 28
All Season Cabbage brassica Apr 20 Jun 29 – Jul 9
All Year Round Cauliflower brassica Apr 20 Jun 24
Bouquet Dill herb Apr 20 Jun 9 – Jun 24
Calabrese Broccoli brassica Apr 20 Jun 24
Charleston Wakefield Cabbage brassica Apr 13 Jun 22
Chinese Forget-Me-Not Flowers flower Apr 20 Jun 24 – Jul 14
Copenhagen Cabbage brassica Apr 20 Jun 24
Dark Green Italian Giant Parsley herb Apr 20 Jun 19 – Jul 4
Di Cicco Broccoli brassica Apr 20 Jun 4 – Jun 7
Early Jersey Wakefield Cabbage brassica Apr 13 Jun 17 – Jun 27
Early Purple Broccoli brassica Apr 20 Jun 24
Evergreen Parsley herb Apr 20 Jun 29 – Jul 14
Fairy Dwarf Mix Candytuft Flowers flower Apr 27 Jun 11 – Jun 21
Golden Acre Cabbage brassica Apr 20 Jun 24
Hard Red Wheat Cover Crop cover crop Apr 13 Jun 27 – Jul 17
Igloo Cauliflower brassica Apr 20 Jun 24 – Jun 29
King Richard Leek allium Apr 6 Jun 20
Mammoth Dill herb Apr 20 Jun 4 – Jun 24
Medium Red Clover Cover Crop cover crop Apr 20 Jun 19 – Jul 4
Michihili Cabbage brassica Apr 13 Jun 22
Rapeseed Cover Crop cover crop Apr 20 Jun 4 – Jun 29
Red Acre Cabbage brassica Apr 13 Jun 27 – Jul 2
Royal Carpet Alyssum Flowers flower Apr 27 Jun 11 – Jun 26
Scarlet Flax Flowers flower Apr 20 Jun 14 – Jun 29
Snowball Self-Blanche Cauliflower brassica Apr 20 Jun 24
Viola and pansy edible flowers flower Apr 20 Jun 19 – Jun 29
Violetta Purple Cauliflower brassica Apr 20 Jun 24
Yellow Sweet Blossom Clover Cover Crop cover crop Apr 20 Jun 19 – Jul 19
Alaska Mix Nasturtium Flowers flower May 4 Jun 28 – Jul 8
Baby's Breath Flowers flower May 4 Jun 18 – Jul 3
Beauty Pink Radishes root vegetable May 11 Jun 6
Beauty Purple Radishes root vegetable May 11 Jun 5 – Jun 10
Beauty White Radishes root vegetable May 11 Jun 10 – Jun 20
Beit Alpha Cucumbers cucumber May 11 Jun 30 – Jul 15
Black Beauty Zucchini squash May 15 Jun 29 – Jul 9
Blue Lake Bush Bean legume May 11 Jun 30 – Jul 8
Boltardy Beets root vegetable May 11 Jun 30 – Jul 10
Borage flower May 4 Jun 28 – Jul 18
Boston Pickling Cucumber cucumber May 11 Jun 30 – Jul 5
Buckwheat cover crop May 4 Jun 3 – Jun 18
Bull's Blood Beets root vegetable May 11 Jun 30 – Jul 5
Bush Pickle Cucumbers cucumber May 11 Jun 25 – Jul 3
California Bluebell flower May 4 Jun 28 – Jul 8
Calypso Cilantro herb May 4 Jun 23 – Jun 28
Champion Radishes root vegetable May 11 Jun 5 – Jun 10
Cherry Belle Radish root vegetable May 11 Jun 5
Contender Bush Bean legume May 11 Jun 25 – Jul 5
County Fair Cucumbers cucumber May 11 Jun 30 – Jul 2
Dark Green Summer Squash squash May 11 Jun 30
Dill herb May 4 Jun 13 – Jun 28
Dwarf Jewel Mix Nasturtium Flowers flower May 4 Jun 23 – Jul 3
Early Wonder Beets root vegetable May 11 Jun 30
Easter Egg Radishes root vegetable May 11 Jun 8 – Jun 12
Eight Ball Zucchini squash May 11 Jun 25 – Jul 5
Empress of India Nasturtium Flowers flower May 4 Jun 28 – Jul 8
French Breakfast Radish root vegetable May 11 Jun 1
Glorious Gleam Nasturtium Flowers flower May 4 Jun 28 – Jul 13
Gold Rush Zucchini squash May 11 Jun 25 – Jun 30
Golden Globe Turnips root vegetable May 11 Jun 25 – Jun 30
Golden Wax Bush Bean legume May 11 Jun 30 – Jul 10
Green Purslane vegetable May 11 Jun 15 – Jun 30
Hailstone Radishes root vegetable May 11 Jun 10
Harvester Bush Bean legume May 11 Jun 30 – Jul 5
Lacy Phacelia Flowers flower May 4 Jun 18 – Jul 3
Landreth Bush Bean legume May 11 Jun 30 – Jul 5
Lebanese White Bush Summer Squash squash May 11 Jun 30
Maxibel Filet Bean legume May 11 Jun 30 – Jul 10
Minowase Daikon Radish root vegetable May 11 Jun 25 – Jul 5
Nasturtium flower May 4 Jun 23 – Jul 8
Orange Sulphur Cosmos Flowers flower May 4 Jun 28 – Jul 13
Peach Melba Nasturtium Flowers flower May 4 Jun 23 – Jul 3
Phacelia cover crop and bee forage cover crop May 4 Jun 18 – Jul 3
Provider Bush Bean legume May 11 Jun 30 – Jul 5
Purple Plum Radishes root vegetable May 11 Jun 8 – Jun 10
Purple Top White Globe Turnip root vegetable May 11 Jun 30
Slow-Bolt (Slo-Bolt) Cilantro/Coriander herb May 4 Jun 1 – Jun 13
Sparkler Radishes root vegetable May 11 Jun 5 – Jun 10
Sparky Mix Marigolds flower May 4 Jun 28 – Jul 13
Sweet Alyssum flower May 18 Jun 27 – Jul 12
Tall Trailing Mix Nasturtium Flowers flower May 4 Jun 28 – Jul 13
Tendergreen Bush Bean legume May 11 Jun 30 – Jul 5
Top Crop Bush Bean legume May 11 Jun 30 – Jul 5
Tri Color Amaranth (Joseph's Coat) vegetable May 11 Jun 10 – Jun 25
Watermelon Radishes root vegetable May 11 Jun 30 – Jul 15
Whirlybird Nasturtium Flowers flower May 4 Jun 23 – Jul 3
White Icicle Radishes root vegetable May 11 Jun 10
Yellow Sulphur Cosmos Flowers flower May 4 Jun 28 – Jul 13

Key Tasks for June in Zone 5B

  1. 1 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
Back to full Zone 5B planting calendar
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