Toronto in June: what to plant
Over the last 5 years, June in Toronto has run 15.0–23.7°C with about 93 mm of rain across the month. Here is what weather like that will carry to harvest.
Everything above is a five-year average. In the game it is this — the weather Toronto is actually having, today.
Grow one in Toronto's weather right now →❄️ No sub-zero nights in June in the last 5 years — frost is not the limiting factor here.
🗓️ This month sits inside the frost-free window. Average last spring frost around Apr 26, first autumn frost around Nov 7 — roughly 195 frost-free days. Sow tender crops after the last frost date and make sure they finish before the first.
☀️ About 12.2 h of sunshine a day this month. Within the month it warms by about 3.2°C from the first ten days to the last.
Sow this month — when would you harvest?
Assuming you sow in mid-June, then adding up the warmth Toronto usually gets, one day at a time — which is why some of these run past the end of the month.
| Crop | Days | Harvest around |
|---|---|---|
| 🌽 Sweet Corn | 78 | Aug 31 |
| 🥒 Zucchini | 56 | Aug 9 |
| 🥢 Green Beans | 52 | Aug 5 |
| 🌿 Amaranth greens | 47 | Jul 31 |
| 🌻 Sunflower | 73 | Aug 26 |
| 🥔 Potato | 61 | Aug 14 |
| 🥬 Celery | 79 | Sep 1 |
| 🏵️ Marigold | 42 | Jul 26 |
| 🥬 Bok Choy | 28 | Jul 12 |
| 🥦 Broccoli | 50 | Aug 3 |
| ⚪ Turnip | 30 | Jul 14 |
| 🍓 Strawberry | 43 | Jul 27 |
🌡️ Winter melon never accumulate enough heat outdoors in Toronto — not in any month. Locally these need a greenhouse or a warm windowsill.
Best crops to sow now
They are all ideal for this month — the only real difference is how long each one takes, so pick whatever you want to eat.
- 🌽 Sweet Corn about 97 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥒 Zucchini about 70 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥢 Green Beans about 65 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🌿 Amaranth greens about 59 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🌻 Sunflower about 89 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥔 Potato about 74 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥬 Celery about 91 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🏵️ Marigold about 49 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥬 Bok Choy about 32 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🥦 Broccoli about 58 days to harvest Recent mean 19.3°C — right in the sweet spot
- ⚪ Turnip about 34 days to harvest Recent mean 19.3°C — right in the sweet spot
- 🍓 Strawberry about 49 days to harvest Recent mean 19.3°C — right in the sweet spot
Leave these for another month
- 🌿 Rocket — 12 day(s) of heat stress
- 🍈 Winter melon — Slow going at current temperatures (~219 days)
- 🍆 Aubergine — Slow going at current temperatures (~192 days)
Other months in Toronto
📍 Somewhere else? Look up your own city →
Temperature and rainfall come from Open-Meteo's historical observations for Toronto, averaged day by day over the last 5 years. Whether a crop finishes in time is worked out from its own starting temperature and heat requirement — those numbers are listed on each crop page if you want to check them.