When to Plant Stevia in Squamish-Lillooet, BC
Stevia is a subtropical herb whose leaves contain natural sweeteners 200-300 times sweeter than sugar. It is grown as an annual in most climates.
Squamish-Lillooet, British Columbia is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is November 7, giving you a growing season of approximately 220 days.
At an elevation of 98 feet, Squamish-Lillooet receives approximately 58.8 inches of rainfall annually with predominantly podzolic loam soil. Summer highs average 87°F, providing good warmth for Stevia during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Stevia root diseases.
Squamish-Lillooet Soil Profile
Soil Type
Podzolic Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
How to Plant Stevia
Plant Water Budget
Monthly Watering Guide for Stevia
Stevia needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Stevia Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.3" | 0" | ❄️ Dormant |
| Feb | — | 2.4" | 0" | ❄️ Dormant |
| Mar | — | 4.4" | 0" | ❄️ Dormant |
| Apr | 2.2" | 6.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 7.4" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 7.7" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 7.2" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Squamish-Lillooet). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Stevia Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Stevia Planting Timeline — Squamish-Lillooet, BC
Stevia Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 11 | Feb 11 – Feb 25 |
| Transplant Outdoors | April 15 | Apr 15 – Apr 29 |
| Direct Sow | April 8 | Apr 8 – Apr 29 |
| Harvest | June 17 | Jun 17 – Aug 26 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | — |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 8a
📆 Growing Season
220 days in Squamish-Lillooet
Growing Tips for Stevia in Squamish-Lillooet
Common pests for Stevia in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
With 59" of annual rainfall in Squamish-Lillooet, ensure good drainage for Stevia — excess moisture can promote root rot and fungal diseases.
General growing tips
Start seeds indoors under lights or buy transplants. Pinch flowers to encourage leaf production. Harvest leaves before flowering for maximum sweetness. Dry leaves for year-round use.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Stevia in Other Locations
Frequently Asked Questions
When should I plant Stevia in Squamish-Lillooet, BC?
Squamish-Lillooet is in Zone 8a with an average last frost of April 1. Plan your Stevia planting based on this frost date — see the calendar above for exact timing.
What planting zone is Squamish-Lillooet, BC?
Squamish-Lillooet, British Columbia is in USDA Hardiness Zone 8a. The average last spring frost is April 1 and first fall frost is November 7.
Your Squamish-Lillooet Garden Planner — Free
A 24-page printable planner built for Squamish-Lillooet (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.