Yacon · Ciudad Nezahualcoyotl, México, Mexico
When to plant yacon in Ciudad Nezahualcoyotl
Main outdoor window
16 Feb - 16 Mar
The window this page is built around.
Timed from last spring frost
9 February
In Ciudad Nezahualcoyotl, on your chosen risk.
Ready to pick
1 Oct - 30 Nov
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 Ciudad Nezahualcoyotl
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 rhizomes
16 Feb - 16 Mar
One week after your last frost.
Harvest
1 Oct - 30 Nov
Yacon through the year
Against the frost risk in Ciudad Nezahualcoyotl
Why these dates
Plant rhizomes after the last frost. Lift when the first frost blackens the tops, and store the crowns frost-free for replanting.
Top growth is killed at 0C. The tubers survive a light frost in the ground but not a freeze, so they are lifted promptly.
Seed packets and extension guides express timing as weeks either side of the last spring frost, because that is the only reference point that travels. Yacon are timed with planting out 1 weeks after it, and this page simply resolves those offsets against the frost date computed for Ciudad Nezahualcoyotl.
Hardiness is not the obstacle here. Ciudad Nezahualcoyotl is zone 9b, comfortably inside the range this crop is rated for, so an established plant should come through an average winter without protection.
The median frost-free season here is 281 days, against 150 to 210 days to maturity for this crop counted from sowing. That margin is what decides whether a late sowing is worth attempting.
Nearby
Yacon in places close by
Also in Ciudad Nezahualcoyotl
Other vegetables to time
Growing yacon in Ciudad Nezahualcoyotl
When should I plant yacon in Ciudad Nezahualcoyotl?
Aim for 16 Feb - 16 Mar in an average year. If you would rather not gamble on the weather, wait until 7 Mar - 4 Apr - by then frost has finished in nine years out of ten.
When will yacon be ready to harvest in Ciudad Nezahualcoyotl?
Expect to start picking around 1 Oct - 30 Nov, based on 150 to 210 days to maturity from the planting date calculated for this location.
How much frost will yacon tolerate?
Top growth is killed at 0C. The tubers survive a light frost in the ground but not a freeze, so they are lifted promptly.