Zone 4 Coverage
Planting Timeline — All Varieties
Growing Microgreens in Zone 4
Zone 4 gardeners face unique advantages when it comes to microgreen cultivation. While your outdoor growing season may be shorter than warmer zones, microgreens are perfectly suited to indoor growing year-round, making them an ideal crop for maximizing fresh greens during those long northern winters. The key is selecting varieties that germinate reliably in cooler indoor conditions and don't require the intense heat that some microgreens prefer.
When choosing microgreens for Zone 4, prioritize fast-germinating varieties that thrive in moderate temperatures (65-75°F) rather than heat-lovers. Look for varieties with strong nutritional profiles to supplement your diet during months when fresh outdoor greens aren't available. The varieties listed here have proven themselves reliable performers in cooler conditions, with most ready to harvest within 7-14 days of planting.
These microgreen selections shine because they're forgiving of temperature fluctuations common in Zone 4 homes during winter, germinate consistently without requiring heating mats, and provide the robust flavors and nutrition that make indoor growing worthwhile when snow covers your outdoor garden beds.
Variety Comparison
| Variety ↑ | Days | Difficulty | Size | Type | Indoor | Harvest |
|---|---|---|---|---|---|---|
| Alfalfa Microgreens | 6-10 | Easy | 1-2 inches tall, very delicate structure | Heirloom | January–December | January–December |
| Amaranth Microgreens | 8-12 | Easy | Tiny leaves, 0.25-0.5 inch | OP | January–December | January–December |
| Arugula Microgreens | 5-10 | Easy | 1-2 inches tall with small leaves | OP | January–December | January–December |
| Beet Microgreens | 8-12 | Easy | 2-3 inch colorful stems with oval leaves | OP | January–December | January–December |
| Broccoli Microgreens | 7-10 | Easy | 1-2 inch stems with small cotyledon leaves | OP | January–December | January–December |
| Cilantro Microgreens | 10-14 | Moderate | 2-3 inch stems with small compound leaves | OP | January–December | January–December |
| Kale Microgreens | 8-12 | Easy | 1-2 inch stems with rounded cotyledon leaves | OP | January–December | January–December |
| Lemon Balm Microgreens | 14-21 | Moderate to Advanced | 2-4 inches tall with true leaves developing | Heirloom | January–December | January–December |
| Mung Bean Microgreens | 6-10 | Easy | 2-4 inches tall when harvested | OP | January–December | January–December |
| Mustard Microgreens | 6-8 | Very Easy | 1-2 inch stems with small round cotyledons | OP | January–December | January–December |
| Pea Shoots | 7-14 | Easy | 2-4 inches tall when harvested | OP | January–December | January–December |
| Purple Kohlrabi Microgreens | 8-12 | Easy to Moderate | 2-3 inches tall at harvest | Hybrid | January–December | January–December |
| Radish Microgreens | 5-8 | Easy | 1-3 inches tall when harvested | OP | January–December | January–December |
| Red Cabbage Microgreens | 8-12 | Easy | 1-2 inches tall when harvested | OP | January–December | January–December |
| Sunflower Microgreens | 7-12 | Easy to Moderate | 2-3 inches tall with thick stems | OP | January–December | January–December |
| Swiss Chard Microgreens | 7-14 | Easy | 1-2 inch stems and leaves | OP | January–December | January–December |
| Wheatgrass Microgreens | 7-10 | Very easy | Thin grass blades 4-6 inches long | OP | January–December | January–December |
Variety Details
Alfalfa Microgreens
A classic microgreen variety beloved for its delicate appearance, mild nutty flavor, and incredible ease of growing. Alfalfa microgreens produce thin, graceful stems topped with tiny green leaves that add elegant texture to dishes without overwhelming flavors. They're one of the most forgiving varieties for beginners and have been a staple in the microgreen world for decades.
Amaranth Microgreens
Stunning microgreens featuring deep burgundy and magenta colored stems topped with vibrant green or red-tinged leaves. These nutritional powerhouses offer a mild, earthy flavor and exceptional visual impact that makes ordinary dishes extraordinary. Ancient superfood in microgreen form that's surprisingly easy to grow.
Arugula Microgreens
Intensely flavored microgreens that pack all the peppery punch of mature arugula into tiny, tender leaves. These fast-growing greens are perfect for adding a spicy kick to salads and dishes with minimal growing time. Their bold flavor and easy cultivation make them a must-have for any microgreen garden.
Beet Microgreens
These stunning microgreens feature vibrant magenta-red stems topped with green leaves, creating one of the most visually striking microgreens available. Their sweet, earthy flavor with a hint of the beetroot taste makes them incredibly versatile in the kitchen. The colorful stems and leaves retain their vibrant colors even after harvesting, making them perfect for high-end culinary presentations.
Broccoli Microgreens
These nutrient-dense microgreens pack an incredible punch with up to 40 times more vitamins than mature broccoli. Known for their mild, slightly bitter flavor reminiscent of mature broccoli but more delicate, they're one of the most popular microgreens for health-conscious gardeners. Easy to grow and ready in just 7-10 days, making them perfect for continuous harvesting.
Cilantro Microgreens
These aromatic microgreens deliver the distinctive cilantro flavor in a concentrated, tender form that's perfect for culinary applications. Growing much faster than mature cilantro and without the risk of bolting, they provide a continuous supply of fresh herb flavor. Their delicate feathery leaves add both flavor and visual appeal to dishes.
Kale Microgreens
These superfood microgreens deliver intense nutrition in a mild, sweet package that's far less bitter than mature kale. With their beautiful purple and green coloration, they're as visually stunning as they are nutritious, containing high levels of vitamins A, C, and K. Perfect for those who want kale's health benefits without the strong flavor of full-grown leaves.
Lemon Balm Microgreens
These aromatic microgreens bring an intense lemony fragrance and flavor that's perfect for culinary applications and herbal teas. Lemon balm microgreens grow more slowly than most varieties but reward patient growers with incredibly flavorful, tender leaves that pack the same citrusy punch as the mature herb. They're perfect for adding a gourmet herb element to your microgreen collection.
Mung Bean Microgreens
These fast-growing microgreens produce thick, crunchy stems and delicate leaves with a fresh, mild bean flavor reminiscent of fresh peas. Mung bean microgreens are incredibly reliable for beginners and offer impressive yields, making them a staple for home microgreen growers. Their substantial texture and clean taste make them perfect for adding protein-rich crunch to any dish.
Mustard Microgreens
These fast-growing microgreens pack a spicy punch with their distinctive peppery flavor that's more intense than radish microgreens. Ready in just one week, they're among the quickest microgreens to harvest and provide a reliable, continuous crop. Their bold flavor makes them perfect for adding heat and complexity to dishes without the need for hot peppers.
Pea Shoots
Sweet, tender microgreens with a fresh pea flavor that's incredibly popular among home gardeners. These fast-growing shoots are perfect for beginners and provide a continuous harvest when succession planted. Their crisp texture and sweet taste make them a gourmet addition to salads and stir-fries.
Purple Kohlrabi Microgreens
These striking microgreens showcase beautiful purple stems topped with green cotyledon leaves, offering both visual appeal and a distinctive mild cabbage-radish flavor. Purple kohlrabi microgreens are part of the brassica family, providing excellent nutrition and a peppery bite that's milder than radish but more complex than cabbage. They're perfect for adding color and sophisticated flavor to microgreen mixes.
Radish Microgreens
Quick-growing microgreens that deliver a spicy radish bite in just days, making them perfect for impatient gardeners. These colorful shoots range from mild to fiery depending on the variety, with beautiful purple and green stems that add visual appeal. Their rapid growth and intense flavor make them one of the most rewarding microgreens to grow.
Red Cabbage Microgreens
Stunning purple-red microgreens that add vibrant color and a mild cabbage flavor with a slight peppery kick. These beautiful microgreens are not only visually striking but also packed with antioxidants and nutrients. Their gorgeous color intensifies under light, making them perfect for elevating the presentation of any dish.
Sunflower Microgreens
Robust microgreens with thick, meaty stems and a satisfying crunch that delivers a nutty, slightly sweet flavor. These substantial microgreens are perfect for adding texture and nutrition to meals, packed with protein and healthy fats. Their impressive size and distinctive taste make them a favorite among microgreen enthusiasts.
Swiss Chard Microgreens
Vibrant microgreens with striking rainbow-colored stems and tender, earthy leaves that add both visual appeal and nutritional density to any dish. These fast-growing greens offer a mild, sweet flavor similar to spinach but with more complexity. Perfect for gardeners wanting colorful microgreens that are both beautiful and delicious.
Wheatgrass Microgreens
The classic health-focused microgreen beloved by juicing enthusiasts and wellness-minded gardeners for its concentrated nutrition and vibrant green color. These hardy, fast-growing grass shoots are incredibly easy to grow and provide fresh ingredients for juicing, smoothies, or direct consumption. Perfect introduction to microgreen growing with virtually guaranteed success.
Zone 4 Growing Tips
In Zone 4, you can start microgreens indoors any time of year, but pay special attention to your indoor environment during winter months when heating systems can create dry conditions. Most Zone 4 homes maintain temperatures between 65-72°F during winter – perfect for microgreens, though you may need to provide supplemental humidity with a small humidifier or humidity dome during germination.
During your outdoor growing season (May through September), consider growing microgreens in a cool, shaded area or basement to avoid heat stress. Summer temperatures above 80°F can cause poor germination and bitter flavors in many varieties. If growing near windows, choose north or east-facing locations to avoid intense afternoon sun that can overheat your growing trays.
The biggest challenge Zone 4 growers face is maintaining consistent moisture without overwatering during the dry winter months. Use bottom-watering techniques and cover seeds with a humidity dome for the first 2-3 days. Once sprouted, ensure good air circulation to prevent mold – a small fan on low speed works wonders in preventing the fungal issues that can plague microgreens in heated, poorly ventilated homes.
Season Overview
With your last frost around May 10th and first frost arriving September 25th, you have a solid 135-day outdoor growing season, but microgreens truly shine as a year-round indoor crop for Zone 4 gardeners. Start ramping up microgreen production in October as your outdoor harvest winds down, providing fresh greens throughout the winter months when grocery store options are expensive and less flavorful. Many Zone 4 gardeners find that winter-grown microgreens actually outperform their summer attempts, as the cooler, more stable indoor conditions prevent the bolting and bitter flavors that can occur during hot July and August weather.