Lavender · Ponta Grossa, Paraná, Brazil
When to plant lavender in Ponta Grossa
Main outdoor window
14 Jun - 16 Jul
The window this page is built around.
Timed from last spring frost
30 July
In Ponta Grossa, on your chosen risk.
Ready to pick
29 Nov - 28 Feb
If you plant at the start of the window.
The average last frost. Half of all years are later than this.
Step by step in Ponta Grossa
Each window is a range, not a single day. Earlier in the range buys you a longer season; later in it buys you a safer one.
Plant out
14 Jun - 16 Jul
Any time the plant is dormant and the ground is neither frozen nor waterlogged: after leaf fall in autumn, or at the end of winter before growth restarts.
Harvest
29 Nov - 28 Feb
Lavender through the year
Against the frost risk in Ponta Grossa
Why these dates
Plant out after the last frost. Prune immediately after flowering, taking off about a third but never cutting into leafless old wood, which rarely reshoots.
English lavender takes about -18C in well-drained soil. In heavy or wet ground it dies at temperatures well above that, which is why lavender fails in clay gardens.
Lavender are planted once and then left in place, so there is no sowing offset to resolve. What matters in Ponta Grossa is the shape of the year: this crop is dormant through the winter and is planted while it sleeps, any time between leaf fall in autumn and the restart of growth in spring, so long as the ground is neither frozen nor waterlogged. That is why the window below spans the cold months rather than sitting in the middle of the growing season.
Ponta Grossa sits in zone 10a, which is milder than this crop wants, and a winter that never really arrives is its own problem. The dates below still describe the right time of year; the open question is survival rather than timing.
Do not expect a crop in the first year. A plant set out now should give its first worthwhile pick around year 1, and will then produce every year after that, which is what makes the planting decision worth getting right the first time.
Nearby
Lavender in places close by
Growing lavender in Ponta Grossa
When should I plant lavender in Ponta Grossa?
Aim for 14 Jun - 16 Jul in an average year. If you would rather not gamble on the weather, wait until 2 Jun - 18 Aug - by then frost has finished in nine years out of ten.
When will lavender be ready to harvest in Ponta Grossa?
Expect to start picking around 29 Nov - 28 Feb, based on 90 to 120 days to maturity from the planting date calculated for this location.
How much frost will lavender tolerate?
English lavender takes about -18C in well-drained soil. In heavy or wet ground it dies at temperatures well above that, which is why lavender fails in clay gardens.