When to plant Lilies in Pipestone County, MN
Plant Lilies in Pipestone County, between May 18 and June 1 — the only viable window. Zone 4b's short season (151 frost-free days) rules out a fall crop.
When to Plant Lilies in Pipestone County, MN
June to-do list for Pipestone County, Minnesota
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
Lilies (Lilium spp.) are among the most impressive summer-blooming bulbs, delivering bold, upward- or outward-facing trumpet blooms on tall stems from June through August. Asiatic hybrids are the most cold-hardy, earliest to bloom, and easiest to grow; Oriental hybrids bloom later with intensely fragrant, larger flowers. Orienpet (OT) hybrids combine the hardiness of Asiatics with the fragrance and size of Orientals. True lilies (not to be confused with daylilies, which are Hemerocallis) form scaly bulbs that persist and multiply underground, returning reliably each year with increasingly large clumps.
Pipestone County, Minnesota is in USDA Zone 4b. The average last spring frost is May 4 and the first fall frost is October 2, giving you a growing season of approximately 151 days.
At an elevation of 906 feet, Pipestone County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Lilies to ensure they mature before fall.
Pipestone County Soil Profile
Soil Type
Silt Loam
Soil pH
6-6.8
Drainage
Well Drained
Lilies 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.
Soil Compatibility in Pipestone County
How your county's soil matches Lilies's growing requirements.
Soil pH
Your soil pH (6.0–6.8) overlaps with Lilies's range (6.0–6.5), though not a perfect match.
Soil Texture
The silt loam soil in Pipestone County is excellent for Lilies — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (5.0%) — Lilies will thrive.
How to Plant Lilies
Succession Planting Lilies
Sow every 8 weeks. Last sowing by Jun 04 to harvest before frost.
Lilies Water Budget
Monthly Watering Guide for Lilies
Lilies needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Lilies Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 2.9" | 0" | ❄️ Dormant |
| Apr | — | 3.9" | 0" | ❄️ Dormant |
| May | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.6" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Aug | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Sep | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Oct | 4.3" | 3" | 1.3" | 💧 Light watering |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 2.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Pipestone County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Lilies 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.
Lilies Planting Timeline — Pipestone County, MN
Lilies Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 18 | May 18 – Jun 1 |
| Bloom | August 10 | Aug 10 – Oct 12 |
Plant 5" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | Transplant Outdoors |
| July | — |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
70–120 days
🧪 Soil pH
Needs 6–6.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 4b
📆 Growing Season
151 days in Pipestone County
Growing Tips for Lilies in Pipestone County
Direct sow Lilies outdoors after May 04 in Pipestone County when soil has warmed and frost danger has passed.
General growing tips
Plant bulbs in fall (preferred, September–October) or spring, setting them 3 times their diameter deep (typically 4–6 inches) with the pointed end up. Lilies need excellent drainage — they will rot in wet or heavy clay soils. Site with full sun on stems and blooms but cool, shaded soil at the base (ground cover or shallow-rooted annuals at their feet is ideal). Remove spent blooms but leave stems and foliage until they yellow naturally, as the bulb needs the foliage to photosynthesize and rebuild energy stores. Red lily beetle is a serious pest in the Northeast and Pacific Northwest; inspect plants regularly and hand-pick adults and larvae. Never plant Oriental or Asiatic lilies near cats — all Lilium species are highly toxic to cats. Year 2+ bulbs produce the most stems and largest blooms.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Lilies in Other Locations
Frequently Asked Questions
When should I plant Lilies in Pipestone County, MN?
Pipestone County is in Zone 4b with an average last frost of May 4. Plan your Lilies planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pipestone County, MN?
Pipestone County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 4 and first fall frost is October 2.
When should I plant Lilies in Pipestone County, MN?
In Pipestone County, MN, plant Lilies after the last frost (around May 4) and before the first frost (around October 2). Best results when soil holds above 50°F.
What growing zone is Pipestone County, MN for Lilies?
Pipestone County sits in USDA Zone 4b. Lilies grows reliably in zones 3a through 9a, so it's a good fit here.
Can Lilies grow in Pipestone County's climate?
Yes — Lilies grows well in Pipestone County's temperate climate. Pipestone County averages a 151-day frost-free season, with last frost around May 4 and first frost around October 2.
Your Pipestone County Garden Planner — Free
A 22-page printable planner built for Pipestone County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.