Wind River GreensGrowing Guide

What to Plant in April in Colorado

Your complete April planting guide for Colorado (USDA Zone 5). Last frost: April 30. First frost: October 5. Growing season: 155 days.

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199

Start Indoors

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49

Transplant Outdoors

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252

Direct Sow

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49

Harvest

Colorado Growing Season

JanFebMarAprMayJunJulAugSepOctNovDec

Plant after April 30 · Harvest before October 5

Colorado · Zone 5

Zone 5 April guide

Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

🏠 Start Indoors in Colorado — April199

Flowers(53)

Zinnia State Fair Mix

75-85 days · Easy

Cosmos Sensation Mix

Very Easy

Sweet Pea Royal Mix

65-75 days · Moderate

Rose David Austin Lady of Shalott

N/A days · Moderate

Rose Eden Climbing

60-80 days · Moderate

Sweet Alyssum Snow Princess

N/A days · Easy

Herbs(42)

Curly Parsley

70-90 days · Easy

Petroselinum crispum 'Forest Green'

70-85 days · Easy

Gourmet Gold Dill

40-50 days · Easy

English Lavender

90-120 days · Easy

Common Thyme

90-95 days · Easy

German Thyme

90-95 days · Easy

Melons(38)

Watermelon Charleston Gray

85-95 days · Moderate

Crimson Sweet Watermelon

85 days · Moderate

Cantaloupe Athena

80-85 days · Easy to moderate

Hale's Best Cantaloupe

85-90 days · Moderate

Banana Melon

90-100 days · Moderate

Galia Melon

85-100 days · Moderate

Microgreens(36)

Cilantro Microgreens

10-14 days · Moderate

Arugula Microgreens

10-15 days · Easy

Fenugreek Microgreens

7-14 days · Easy to moderate

Wheatgrass Microgreens

7-10 days · Very easy

Alfalfa Microgreens

6-10 days · Easy

Clover Microgreens

8-12 days · Easy to Moderate

Cucumbers(30)

Mexican Sour Gherkin

67 days · Easy

Homemade Pickles

52-55 days · Easy

Kirby Cucumber

55-60 days · Easy

Crystal Apple Cucumber

65-75 days · Easy

Japanese Climbing

58-65 days · Moderate

National Pickling

52-58 days · Easy

🌿 Transplant Outdoors in Colorado — April49

Brassicas(49)

Kale 'Winterbor F1'

60-65 days · Easy

Purple Vienna Kohlrabi

60-70 days · Easy

Arugula 'Rocket'

20-40 days · Very Easy

Easter Egg Radish

30 days · Very easy

Ruby Perfection Cabbage

85 days · Moderate

Red Russian Kale

50-65 days · Easy

🌱 Direct Sow in Colorado — April252

Lettuce & Salad Greens(52)

Tom Thumb

45-55 days · Easy

Summertime

70-80 days · Moderate

Salanova Green Crispy

55-65 days · Easy to Moderate

Romaine Cos

70-85 days · Moderate

Cimmaron Romaine

55-65 days · Easy to Moderate

Deer Tongue

45-55 days · Easy

Brassicas(49)

Kale 'Winterbor F1'

60-65 days · Easy

Purple Vienna Kohlrabi

60-70 days · Easy

Arugula 'Rocket'

20-40 days · Very Easy

Easter Egg Radish

30 days · Very easy

Ruby Perfection Cabbage

85 days · Moderate

Red Russian Kale

50-65 days · Easy

Root Vegetables(43)

German Giant Radish

45-60 days · Easy

Thumbelina Carrot

65-70 days · Easy

Red Ace Beet

50 days · Easy

Purple Daikon Radish

55-65 days · Easy

Purple Plum Radish

25-30 days · Easy

Early Wonder Tall Top Beet

48-55 days · Easy

Peas(35)

Purple Top

37 days · Moderate

Purple Podded

65-70 days · Easy to Moderate

Laxton's Progress No. 1

60-65 days · Easy

Lincoln

65-70 days · Easy

Kelvedon Wonder

60-65 days · Easy

Mr. Big

60-65 days · Easy

Alliums(35)

Rossa di Milano

95-105 days · Easy to moderate

French Gray Shallot

90-120 days · Easy to moderate

Yellow Sweet Spanish Onion

110-120 days · Easy

Garlic Chives

80-90 days · Easy

Elephant Garlic

240-270 days · Easy

Music Hardneck Garlic

240-270 days · Easy

Native Wildflowers(21)

Blanket Flower

Not applicable days · Easy

Purple Coneflower

300-365 days · Easy

Coral Bells

N/A days · Easy

Sweet Alyssum

50-60 days · Very easy

Wild Blue Phlox

Easy to moderate

Wild Lupine

N/A days · Moderate

Grasses & Bamboo(17)

Japanese Forest Grass

Moderate

Northern Sea Oats

N/A days · Easy

Perennial Ryegrass

N/A days · Easy

Blue Fescue

Easy

Eco-Lawn Mix

N/A days · Easy

Purple Top Timothy

60-90 days · Easy

🧺 Harvest in Colorado — April49

Microgreens(36)

Cilantro Microgreens

10-14 days · Moderate

Arugula Microgreens

10-15 days · Easy

Fenugreek Microgreens

7-14 days · Easy to moderate

Wheatgrass Microgreens

7-10 days · Very easy

Alfalfa Microgreens

6-10 days · Easy

Clover Microgreens

8-12 days · Easy to Moderate

Alliums(7)

Elephant Garlic

240-270 days · Easy

Music Hardneck Garlic

240-270 days · Easy

Spanish Roja Garlic

240-270 days · Easy

German Extra Hardy Garlic

240-270 days · Easy

Inchelium Red Softneck Garlic

240-270 days · Easy to Moderate

Georgia Fire Garlic

240-270 days · Easy

Berries & Fruits(4)

Duke Blueberry

1095-1460 days · Moderate

Chester Thornless Blackberry

730 days · Moderate

Heritage Red Raspberry

365-730 days · Easy

Honeyberry (Haskap)

730-1095 days · Easy

Lettuce & Salad Greens(1)

Arugula

10-15 days · Easy

Brassicas(1)

Purple Sprouting Broccoli 'Early Purple Sprouting'

220-240 days · Moderate

April in Other Zone 5 States

Idaho Iowa Michigan Nebraska New Hampshire Utah

April by Zone

Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10

Colorado Monthly Guides

January February March April May June July August September October November December