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Zone 9B — June

What to Plant in June in Zone 9B

June in Zone 9B: 0 crops to start indoors, 88 to plant or direct sow outside, and 25 entering harvest window. About 9 winters in 10 freeze; in those winters the last frost averages February 7. Reference city: Miami, FL.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
0 Start Indoors
88 Plant Outside
25 Harvest
Frost risk: Cleared

Frost season has cleared in Zone 9B: about 9 winters in 10 reach 32°F. In those winters, the last spring frost typically passed by February 7, and the very latest 10% chance closed by March 9. Tender crops are safe to plant out.

See full Zone 9B frost outlook

Start Indoors in June

Nothing to start seeds indoors in June for Zone 9B.
Next window: October — 1 variety, including Texas 1015Y SuperSweet Onion.

Plant Outside in June

Plant Type Action Target Date Harvest Window
All Year Round Lettuce lettuce Direct Sow Jun 9 Aug 12 – Aug 21
America Spinach lettuce Direct Sow Jun 9 Jul 22 – Aug 3
Astro Arugula lettuce Direct Sow Jun 9 Jun 30 – Jul 19
Black Seeded Simpson Lettuce lettuce Direct Sow Jun 9 Jul 24 – Jul 25
Blonde de Paris Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Bloomsdale Longstanding Spinach lettuce Direct Sow Jun 9 Jul 24 – Jul 31
Blue Curled Scotch Kale lettuce Direct Sow Jun 9 Aug 3 – Aug 8
Bok Choy lettuce Direct Sow Jun 9 Jul 24 – Aug 8
Broadleaf Classic Endive lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Broadleaf Full Heart Batavian Endive lettuce Direct Sow Jun 9 Sep 2 – Sep 7
Broadleaf Sorrel lettuce Direct Sow Jun 9 Perennial — see plant page
Burgundy Boston Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 3
Buttercrunch Lettuce lettuce Direct Sow Jun 9 Jul 25 – Aug 3
Butterhead Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 13
Canary Yellow Swiss Chard lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Catalogna Chicory lettuce Direct Sow Jun 9 Aug 3
Chinese Broccoli (Gai Lan) brassica Direct Sow Jun 9 Jul 9 – Jul 29
Crisphead Lettuce lettuce Direct Sow Jun 9 Aug 16 – Aug 23
Curly Kale lettuce Direct Sow Jun 9 Aug 3 – Aug 13
Dark Green Romaine Lettuce lettuce Direct Sow Jun 9 Aug 8 – Aug 18
Delicatesse Blue Kohlrabi brassica Direct Sow Jun 9 Aug 3 – Aug 8
Delicatesse White Kohlrabi brassica Direct Sow Jun 9 Aug 3 – Aug 8
Dutch Lamb's Lettuce lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Dwarf Siberian Kale lettuce Direct Sow Jun 9 Jul 29 – Aug 3
Endive / Escarole lettuce Direct Sow Jun 9 Jul 24 – Aug 13
Florida Broadleaf Mustard lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Fordhook Giant Swiss Chard lettuce Direct Sow Jun 9 Jul 24 – Aug 3
French Lamb's Lettuce lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Georgia Southern Collard Greens lettuce Direct Sow Jun 9 Aug 18 – Sep 2
Giant Red Mustard lettuce Direct Sow Jun 9 Jul 24
Green Ice Lettuce lettuce Direct Sow Jun 9 Jul 24
Green Mountain Celtuce lettuce Direct Sow Jun 9 Jul 29
Green Wave Mustard lettuce Direct Sow Jun 9 Jul 24
Hot Pink Swiss Chard lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Iceberg Lettuce lettuce Direct Sow Jun 9 Aug 16 – Aug 23
Kagraner Sommer Lettuce lettuce Direct Sow Jun 9 Aug 6
Lacinato Kale lettuce Direct Sow Jun 9 Aug 8 – Aug 13
Large Leaf Sorrel lettuce Direct Sow Jun 9 Perennial — see plant page
Leaf Lettuce Mix lettuce Direct Sow Jun 9 Jul 24 – Aug 3
Little Gem Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 4
Lollo Bionda Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Lollo Rossa Lettuce lettuce Direct Sow Jun 9 Aug 1 – Aug 4
Magenta Sunset Swiss Chard lettuce Direct Sow Jun 9 Aug 3 – Aug 8
Marvel of Four Seasons Lettuce lettuce Direct Sow Jun 9 Jul 24 – Aug 8
Matador Viking Spinach lettuce Direct Sow Jun 9 Jul 24 – Jul 27
Mesclun Mix lettuce Direct Sow Jun 9 Jun 30 – Jul 9
Mizuna lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Monstrueux de Viroflay Spinach lettuce Direct Sow Jun 9 Jul 24 – Jul 29
Morris Heading Collard lettuce Direct Sow Jun 9 Aug 23 – Aug 28
Mustard Greens lettuce Direct Sow Jun 9 Jul 14 – Jul 29
Mâche (Corn Salad) lettuce Direct Sow Jun 9 Aug 8 – Sep 1
Napa Cabbage brassica Direct Sow Jun 9 Aug 8 – Aug 18
New Zealand Spinach lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Noble Giant Spinach lettuce Direct Sow Jun 9 Jul 25 – Jul 29
Old Fashion Mustard lettuce Direct Sow Jun 9 Jul 24 – Jul 29
Orange Swiss Chard lettuce Direct Sow Jun 9 Jul 24 – Aug 3
Premier Kale lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Radicchio lettuce Direct Sow Jun 9 Aug 8 – Sep 2
Rainbow Mix Swiss Chard lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Rapini Broccoli Raab brassica Direct Sow Jun 9 Aug 13
Red Leaf Lettuce lettuce Direct Sow Jun 9 Jul 24 – Aug 3
Red Orach lettuce Direct Sow Jun 9 Jul 24
Red Romaine Lettuce lettuce Direct Sow Jun 9 Aug 8 – Aug 18
Red Russian Kale lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Red Vein Sorrel lettuce Direct Sow Jun 9 Perennial — see plant page
Red-Stem Malabar Spinach lettuce Direct Sow Jun 9 Aug 3 – Aug 18
Romaine Lettuce lettuce Direct Sow Jun 9 Aug 13 – Aug 23
Ruby Red Swiss Chard lettuce Direct Sow Jun 9 Aug 3 – Aug 8
Salad Bowl Green Lettuce lettuce Direct Sow Jun 9 Jul 28 – Jul 29
Shungiku (Edible Chrysanthemum) lettuce Direct Sow Jun 9 Jul 19 – Aug 3
Summer Bibb Lettuce lettuce Direct Sow Jun 9 Aug 3 – Aug 8
Swiss Chard lettuce Direct Sow Jun 9 Jul 29 – Aug 8
Tango Lettuce lettuce Direct Sow Jun 9 Jul 25
Tatsoi lettuce Direct Sow Jun 9 Jul 4 – Jul 24
Tendergreen Mustard lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Tom Thumb Lettuce lettuce Direct Sow Jun 9 Jul 29 – Aug 18
Très Fine Maraîchère Frisée lettuce Direct Sow Jun 9 Aug 8
Tuscany Black Kale lettuce Direct Sow Jun 9 Aug 8 – Aug 23
Vates Collard lettuce Direct Sow Jun 9 Aug 8 – Aug 23
Vates Kale lettuce Direct Sow Jun 9 Jul 29 – Aug 3
Verona Red Chicory lettuce Direct Sow Jun 9 Sep 2 – Sep 9
Vienna Purple Kohlrabi brassica Direct Sow Jun 9 Aug 3 – Aug 13
Vienna White Kohlrabi brassica Direct Sow Jun 9 Aug 3
White Boston Lettuce lettuce Direct Sow Jun 9 Jul 19 – Jul 29
Winner Kohlrabi brassica Direct Sow Jun 9 Jul 24 – Jul 29
Winter Density Lettuce lettuce Direct Sow Jun 9 Aug 2 – Aug 8
Winter Giant Spinach lettuce Direct Sow Jun 9 Jul 24 – Jul 29
Witloof White Chicory lettuce Direct Sow Jun 9 Sep 27 – Oct 17

Harvest in June

Plant Type Planted / Sown Harvest Window
Atlantic Giant Pumpkin squash Feb 14 Jun 4
Big Max Pumpkin squash Feb 14 Jun 9 – Jun 14
Bloody Butcher Corn vegetable Feb 21 Jun 1 – Jun 11
Chayote squash vegetable Feb 21 Jun 21 – Jul 21
Cinderella Pumpkin squash Feb 14 Jun 9
Goldrush Potato root vegetable Feb 14 Jun 5 – Jun 14
Grano Red Onions allium Feb 7 Jun 7
Grano White Onions allium Feb 7 Jun 7
Green Hubbard Winter Squash squash Feb 14 Jun 4
Harris Model Parsnips root vegetable Feb 14 Jun 9 – Jun 14
Honeydew Melon melon Feb 21 Jun 1 – Jun 16
Indian Spring Mix Hollyhock Flowers flower Feb 7 Jun 7 – Aug 6
Kennebec Potato root vegetable Feb 14 Jun 4 – Jun 29
Long Island Cheese Winter Squash squash Feb 14 Jun 2
Luffa gourds vegetable Feb 21 Jun 1 – Jun 21
Mammoth Sandwich Island Salsify root vegetable Feb 14 Jun 14
Pacific Giant Pumpkin squash Feb 14 Jun 9 – Jun 19
Southport Red Globe Onions allium Feb 7 Jun 7
Southport White Globe Onions allium Feb 7 Jun 7
Summer Carnival Mix Hollyhock Flowers flower Feb 7 Jun 7 – Aug 6
Tall Utah 52-70 Celery vegetable Feb 21 Jun 1 – Jul 1
Tepin Hot Peppers pepper Feb 7 Jun 7 – Aug 26
Waltham Butternut Squash squash Feb 21 Jun 1 – Jun 21
Astro Arugula lettuce Jun 9 Jun 30 – Jul 19
Mesclun Mix lettuce Jun 9 Jun 30 – Jul 9

Key Tasks for June in Zone 9B

  1. 1 Direct sow seeds at the recommended depth and spacing. Keep the seedbed consistently moist until germination is complete.
  2. 2 Apply 2–3 inches of mulch around heat-sensitive crops to retain moisture and keep root zones cooler. Water deeply and less frequently rather than shallow daily watering.
  3. 3 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 9B planting calendar
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