What to Plant in June
Oklahoma City, OK · Zone 7a
Last frost: Mar 28
Frost-free days: 222
The garden is established and growing fast. Focus on succession planting, keeping up with watering, and starting fall-season crops indoors if your first frost comes early.
June at a Glance
Indoor
Transplant
Direct Sow
1
5
10
15
20
25
Today
Start Indoors 5
Start these seeds indoors under grow lights or on a sunny windowsill.
Plant now
Squash
Mar 9 – Jun 30
1 per sq ft
45–65 days
Zucchini
Mar 9 – Jun 30
1 per sq ft
45–60 days
Basil
Apr 1 – Jul 8
4 per sq ft
25–35 days
Cucumber
Apr 1 – Jun 23
2 per sq ft
50–70 days
Growing guide
Later this month
Parsley
Jun 16 – Jul 8
4 per sq ft
70–90 days
Transplant 29
Move these seedlings from indoors to your garden beds.
Chives
Feb 15 – Jul 16
9 per sq ft
60–90 days
Mint
Feb 15 – Jul 16
4 per sq ft
60–90 days
Parsley
Feb 15 – Jun 23
4 per sq ft
70–90 days
Broccoli
Feb 15 – Jun 8
1 per sq ft
60–100 days
Brussels Sprouts
Feb 15 – Jun 8
1 per sq ft
80–110 days
Cabbage
Feb 15 – Jun 8
1 per sq ft
70–100 days
Cauliflower
Feb 15 – Jun 8
1 per sq ft
55–100 days
Kale
Feb 15 – Jun 23
1 per sq ft
50–65 days
Leek
Feb 15 – Aug 8
4 per sq ft
90–150 days
Onion
Feb 15 – Aug 16
9 per sq ft
100–120 days
Strawberry
Feb 15 – Jul 16
4 per sq ft
60–90 days
Swiss Chard
Feb 15 – Jun 23
4 per sq ft
50–60 days
Oregano
Mar 1 – Jul 8
1 per sq ft
60–90 days
Rosemary
Mar 1 – Jun 8
1 per sq ft
80–120 days
Sage
Mar 1 – Jun 30
1 per sq ft
75–90 days
Thyme
Mar 1 – Jun 30
4 per sq ft
70–90 days
Artichoke
Mar 1 – Jul 31
1 per sq ft
85–100 days
Celery
Mar 1 – Jun 8
4 per sq ft
80–120 days
Sunflower
Mar 9 – Jun 15
1 per sq ft
70–100 days
Squash
Apr 1 – Jul 23
1 per sq ft
45–65 days
Tomato
Apr 1 – Jun 23
1 per sq ft
65–80 days
Growing guide
Zucchini
Apr 1 – Jul 23
1 per sq ft
45–60 days
Cucumber
Apr 24 – Jul 16
2 per sq ft
50–70 days
Growing guide
Eggplant
Apr 24 – Jun 15
1 per sq ft
70–90 days
Pepper
Apr 24 – Jun 23
1 per sq ft
60–100 days
Growing guide
Melon
May 1 – Jun 8
½ per sq ft
70–90 days
Okra
May 1 – Jul 8
1 per sq ft
50–65 days
Watermelon
May 1 – Jun 8
¼ per sq ft
70–90 days
Basil
May 17 – Aug 23
4 per sq ft
25–35 days
Direct Sow 9
Plant these seeds directly into the soil outdoors.
Garlic
Jan 1 – Sep 23
9 per sq ft
180–240 days
Beet
Feb 8 – Jun 23
9 per sq ft
50–70 days
Peas
Feb 8 – Jun 8
8 per sq ft
55–70 days
Turnip
Feb 8 – Jun 23
9 per sq ft
30–60 days
Carrot
Feb 15 – Jul 16
16 per sq ft
70–80 days
Potato
Feb 22 – Jul 16
1 per sq ft
70–150 days
Dill
Apr 1 – Jul 16
4 per sq ft
40–60 days
Beans (Bush)
Apr 1 – Jul 16
9 per sq ft
50–60 days
Corn
Apr 1 – Jun 23
1 per sq ft
60–100 days
June Gardening Tips
- Start Cucumber, Squash, Zucchini indoors now to give them a head start before transplanting outside.
- Tomato, Pepper, Cucumber can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
- Direct sow Corn, Beans (Bush), Carrot straight into the garden — no transplanting needed.
- Water deeply but less often to encourage deep root growth. Morning watering reduces disease risk.
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