What to plant this week in Charlottetown, PE
Charlottetown gardeners are in a brief, frost-sensitive window between late spring warmth and the October 15 first frost deadline. This week marks the final push for cold-hardy crops like Daikon radish and garlic before winter sets in, while warm-season harvests like loofah and roselle must be gathered immediately as temperatures drop.
The next 7 days
Charlottetown, PEGrowing in Charlottetown right now
- Protect newly transplanted garlic cloves from the region's sharp wind chill by using straw mulch to insulate the soil around the plant base.
- Harvest Daikon radishes promptly this week; lingering ground frost in Zone 5b will cause the roots to crack and lose their crisp texture within days.
- Cut Roselle (Cranberry Hibiscus) stems immediately for drying, as the first hard freeze will turn the vibrant red calyces brown and unusable quickly.
- Loofah vines are finishing their growth cycle; prune them back now so the gourds can mature fully before they drop in the autumn wind.
Sow this week
No direct sowing windows open this week.
Transplant this week
Nothing is due to go out this week.
Harvest soon
4 crops- Daikon Radish
- Garlic
- Loofah (Luffa)
- Roselle (Cranberry Hibiscus)
Seasonal tips
- Finish sowing cold-hardy greens now to maximize yields before the soil warms up significantly.
- Prepare raised beds by adding compost ahead of time so they are ready for transplanting in June.
- Plan your succession schedule for tomatoes, peppers, and eggplant to ensure a continuous summer harvest.
Pest & disease watch
- Watch for late-season aphid swarms on remaining Roselle plants, which thrive during the mild days of early October.
- Check Daikon radish leaves for flea beetles that often surge when nights cool but days remain sunny above 10°C.
- Scout loofah vines for powdery mildew spots as humidity rises in the fall before the dry winter air returns.
Watering this week
Water deeply and consistently now that the ground has thawed, aiming for about 1 inch per week to encourage strong root establishment.
Apply a light layer of mulch around transplants once they are in the ground to retain moisture as the soil temperature fluctuates.
Charlottetown gardening questions
3Can I still transplant tomato seedlings this week in Charlottetown?
No, with an average last frost date of May 1 and current cooling trends, waiting to plant tomatoes now will result in fatal frost damage. It is safer to wait for soil temperatures to warm again in late spring or use hardening-off techniques if you have very young plants.
When should I harvest my garlic in Zone 5b near Charlottetown?
Harvest your garlic when the lower leaves begin to yellow and fall over, typically a few weeks before the October 15 first frost date. Dig carefully on dry days to ensure the bulbs cure properly for winter storage without rotting in damp soil.
Is it too late to sow any seeds this week?
With no 'sow now' crops listed and temperatures dropping toward -15°F minimums, direct sowing is not viable this week. Focus your efforts on harvesting the available fall crops like Daikon radish and preparing garlic for overwintering instead.
Other cities in zone 5b
8See the full zone 5b guide → · Plan your Charlottetown garden in SproutGuide →