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When to Plant Marigolds in Lyon County, NV

Lyon County, Nevada Zone 7a June

Top priorities for Lyon County, Nevada gardeners in June

We've pulled the most time-sensitive tasks for Lyon County, Nevada this June and put them front and centre. Tackle them in order.

Avg. last frost May 12
Avg. first frost October 10
Soil temp (4") 64°F
Watering Critical
Pest pressure High
Daylight 14.7 hrs
  1. Sow marigolds in trays indoors

    You're about 15 weeks out from your last frost — the perfect window to get these germinating indoors.

To set up a strong July, finish these tasks
  • First harvests: marigolds

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Marigolds (Tagetes patula) are warm-season annuals beloved for their cheerful orange, yellow, and red blooms — and for their well-documented ability to repel pest nematodes in vegetable beds. Easy from seed, drought-tolerant once established, and bloom from early summer until the first hard frost.

Lyon County, Nevada is in USDA Zone 7a. The average last spring frost is May 12 and the first fall frost is October 10, giving you a growing season of approximately 151 days.

At an elevation of 4,379 feet, Lyon County receives approximately 17.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 101°F, so Marigolds may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Marigolds will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Marigolds successfully. Mulch heavily to conserve soil moisture.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
Lyon County, NV (Zone 7a) Moderate season
151 days
Last Spring Frost May 12
151 growing days
First Fall Frost October 10

Lyon County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.7-8.2

Drainage

Well Drained

Marigolds Planting Risk Windows

Early Start (70% safe) ✓ Fits season (1 days to spare)
Start indoors: Mar 20 Transplant: May 1 🌸 Bloom: Jun 26 – Oct 2
Recommended (50%) ✗ May not fit
Start indoors: Mar 31 Transplant: May 12 🌸 Bloom: Jul 7 – Oct 13
Safe Start (90%) ✗ May not fit
Start indoors: Apr 25 Transplant: Jun 6 🌸 Bloom: Aug 1 – Nov 7

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 Lyon County

How your county's soil matches Marigolds's growing requirements.

Soil pH

Your soil pH (6.7–8.2) overlaps with Marigolds's range (6.0–7.5), though not a perfect match.

Soil Texture

Sandy soil in Lyon County warms quickly in spring but drains fast. Marigolds will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Marigolds.

Organic Matter

Organic matter is low (0.7%). Add 2-3 inches of compost before planting Marigolds.

How to Plant Marigolds

0.3"
Planting Depth
10"
Between Plants
12"
Between Rows

Succession Planting Marigolds

3
successive plantings in your 151-day season

Sow every 5.7 weeks. Last sowing by Aug 01 to harvest before frost.

Marigolds Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 281 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Marigolds

Marigolds 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 Marigolds Needs Rainfall You Supplement Action
Jan 1" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 0.9" 0" ❄️ Dormant
Apr 0.6" 0" ❄️ Dormant
May 2.2" 0.4" 1.8" 🚿 Regular watering
Jun 2.2" 0.5" 1.7" 🚿 Regular watering
Jul 2.2" 2.6" 0" ✅ Rainfall sufficient
Aug 2.2" 3.9" 0" ✅ Rainfall sufficient
Sep 2.2" 2.4" 0" ✅ Rainfall sufficient
Oct 2.2" 1.4" 0.8" 💧 Light watering
Nov 1.1" 0" ❄️ Dormant
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Lyon County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Marigolds 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.

Marigolds needs ~1,545 GDD — county provides 3,888 GDD Excellent fit

Marigolds Planting Timeline — Lyon County, NV

Marigolds Planting Calendar

Activity When Date Range
Start Indoors March 31 Mar 31 – Apr 14
Transplant Outdoors May 12 May 12 – May 26
Direct Sow May 12 May 12 – Jun 2
Bloom July 7 Jul 7 – Oct 13

Plant 0.3" deep · 10" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors
May Transplant Outdoors Direct Sow
June Direct Sow
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

151 days in Lyon County

Growing Tips for Marigolds in Lyon County

Direct sow Marigolds outdoors after May 12 in Lyon County when soil has warmed and frost danger has passed.

Sandy soil in Lyon County dries quickly — mulch Marigolds with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 101°F in Lyon County, provide afternoon shade for Marigolds and water deeply in the morning.

Common pests for Marigolds in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct-sow after last frost or start indoors 4-6 weeks earlier. Deadhead spent blooms to keep new flowers coming. French marigolds (T. patula) are the most reliable nematode repellents — plant a band around vegetable beds. Tolerate poor soil but bloom best with monthly compost.

Companion Planting

Good Companions

Avoid Planting Near

  • Beans
  • Cabbage

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Marigolds Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let flower heads dry on plant. Pull dried petals to reveal seeds.
Storage Store in envelopes; viable 3 years at 35°F, under 50% humidity.

Very easy to save. Seeds are the long, thin, dark pieces inside the dried flower head.

Frequently Asked Questions

When should I plant Marigolds in Lyon County, NV?

Lyon County is in Zone 7a with an average last frost of May 12. Plan your Marigolds planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lyon County, NV?

Lyon County, Nevada is in USDA Hardiness Zone 7a. The average last spring frost is May 12 and first fall frost is October 10.

🌱

Your Lyon County Garden Planner — Free

A 22-page printable planner built for Lyon County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lyon County, NV. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.