Best Microgreens to Grow in Spring: A Complete Guide
By Bryan, Microgreens Farmer at Wind River GreensQuick answer: Spring's mild temperatures (60-75°F), longer daylight hours, and natural humidity make it the best season to grow microgreens. Your top choices for spring growing are pea shoots, which thrive in cooler conditions and grow vigorously this time of year. Starting with these varieties gives you the best chance at a successful, flavorful harvest.
Spring is the perfect time to start your microgreens journey or expand your growing repertoire. The mild temperatures, longer daylight hours, and increased humidity create ideal conditions for most microgreen varieties. Whether you're a beginner or experienced grower, choosing the right varieties for spring can make all the difference in your success.
In this comprehensive guide, we'll explore the best microgreens to grow during spring months, along with specific tips for maximizing your harvest during this optimal growing season.
Photo by Bori Balogh on Unsplash
Why Spring is Perfect for Growing Microgreens
Spring offers several advantages for microgreens cultivation that you won't find during other seasons. The natural increase in daylight hours means your microgreens receive more light energy, promoting faster growth and better flavor development.
Temperature stability is another key benefit. Spring's moderate temperatures (typically 60-75°F) fall within the sweet spot for most microgreen varieties. You won't need to worry about the extreme heat of summer slowing growth or the cold snaps of winter requiring additional heating.
The naturally higher humidity levels in spring also help prevent some common growing issues like damping-off disease while keeping your growing medium at optimal moisture levels.
Top 5 Best Microgreens for Spring Growing
1. Pea Shoots - The Spring Champion
Pea shoots are arguably the best microgreens to start with in spring. These vigorous growers love the cool, moist conditions that spring provides and can handle slight temperature fluctuations better than most varieties.
Pea shoots germinate quickly (usually within 2-3 days) and are ready to harvest in just 7-10 days. Their sweet, crisp texture makes them perfect for spring salads and stir-fries. The larger seeds are also more forgiving for beginners, as they're easier to handle and less prone to clumping.
For spring growing, soak your pea seeds for 8-12 hours before planting. The increased ambient humidity means you might not need to water as frequently as you would in drier seasons.
2. Sunflower Microgreens - Nutty Spring Goodness
Sunflower microgreens thrive in spring's mild conditions and produce some of their best flavor during this season. The moderate temperatures prevent the slight bitterness that can develop in hot weather, leaving you with pure, nutty sweetness.
These microgreens are packed with protein and healthy fats, making them an excellent addition to spring detox smoothies and fresh salads. They typically take 8-12 days from seed to harvest, giving you a steady supply throughout the season.
Spring's natural humidity helps prevent the hull problems that sometimes plague sunflower microgreens in drier conditions. Just be sure to remove any seed hulls that remain attached to prevent mold issues.
Photo by Jun Ren on Unsplash
3. Radish Microgreens - Spicy Spring Kick
Radish microgreens love cool weather, making spring an ideal time to grow these spicy little powerhouses. The moderate temperatures allow their signature peppery flavor to develop fully without becoming overwhelmingly hot.
These fast-growing microgreens are ready in just 6-8 days, making them perfect for impatient gardeners or those wanting quick results. The bright pink and purple stems add beautiful color to spring dishes and garnishes.
Spring's consistent moisture levels help radish microgreens develop their characteristic crunch. The cooler nights particularly benefit these microgreens, as they prefer the temperature variation that spring naturally provides.
4. Broccoli Microgreens - Nutrient-Dense Spring Greens
Broccoli microgreens are nutritional powerhouses that perform exceptionally well in spring conditions. The mild temperatures help preserve their high levels of sulforaphane, the compound responsible for many of broccoli's health benefits.
These microgreens have a mild, slightly bitter flavor that pairs perfectly with spring vegetables and lighter dishes. They're ready to harvest in 8-10 days and provide excellent value due to their dense nutritional profile.
Spring growing conditions help prevent the leggy growth that can occur with broccoli microgreens in low-light winter conditions. The increased daylight helps them develop thick, sturdy stems and well-formed leaves.
5. Arugula Microgreens - Peppery Spring Flavor
Arugula microgreens are at their absolute best when grown in cool spring weather. The moderate temperatures allow their signature peppery bite to shine without becoming too intense or bitter.
These quick-growing microgreens are ready in just 7-9 days and add sophisticated flavor to spring salads, sandwiches, and pasta dishes. Their distinctive taste pairs beautifully with seasonal ingredients like asparagus and fresh peas.
The consistent moisture levels in spring help arugula microgreens develop their characteristic texture and prevent the rapid flowering that can occur in hot weather.
Spring Growing Tips for Maximum Success
Optimize Your Lighting Setup
While spring provides more natural light than winter, you may still want to supplement with grow lights for consistent results. The increased daylight hours mean you can reduce your artificial lighting schedule from 16-18 hours to 12-14 hours per day.
Position your trays near south-facing windows to take advantage of natural sunlight, but be prepared to move them if temperatures spike unexpectedly. The combination of natural and artificial light often produces the best results during spring months.
Monitor Humidity Levels
Spring's naturally higher humidity is generally beneficial, but it can sometimes lead to mold issues if air circulation is poor. Ensure good ventilation around your growing area and consider using a small fan on low speed to keep air moving.
Check your growing medium moisture levels more frequently during humid periods. You might find you need to water less often than during dry winter months.
Temperature Management
While spring temperatures are generally ideal, watch for unexpected warm spells that can stress your microgreens. If temperatures consistently rise above 75°F in your growing area, consider moving trays to a cooler location or increasing ventilation.
Cool nights are actually beneficial for most microgreen varieties, so don't worry if temperatures drop into the 50s overnight. This temperature variation often improves flavor development.
Photo by Rachel Clark on Unsplash
Succession Planting for Continuous Harvests
Spring's stable growing conditions make it perfect for establishing a succession planting schedule. Start new trays every 3-4 days to ensure a continuous supply of fresh microgreens throughout the season.
Keep detailed records of planting dates and varieties to optimize your timing. At Wind River Greens, we've found that staggering plantings every three days provides the perfect balance of fresh harvests without overwhelming production.
Consider growing different varieties on different schedules. Fast-growing varieties like radish can be planted every 3 days, while slower varieties like sunflower might work better on a weekly schedule.
Common Spring Growing Challenges and Solutions
Managing Increased Pest Activity
Spring's warming temperatures can bring increased pest activity, particularly fungus gnats. These tiny flies are attracted to moist growing media and can become problematic if not managed early.
Prevention is key - ensure proper drainage in your trays and avoid overwatering. If gnats appear, yellow sticky traps placed around your growing area can help control adult populations.
Preventing Mold in Humid Conditions
Higher humidity levels can sometimes lead to mold issues, particularly with dense-seeded varieties. Improve air circulation and consider reducing seeding density slightly during particularly humid periods.
Watch for white, fuzzy growth that indicates mold rather than healthy root development. Healthy roots are typically more hair-like and don't have the cotton-ball appearance of mold.
Harvesting and Storage Tips for Spring Microgreens
Spring-grown microgreens often have excellent shelf life due to the optimal growing conditions. Harvest in the morning when plants are fully hydrated for best results.
Use clean, sharp scissors to cut just above the growing medium. Avoid cutting too low, as this can introduce contamination from the growing substrate.
Store harvested microgreens in the refrigerator in breathable containers. Spring-grown microgreens typically maintain quality for 7-10 days when properly stored.
Expanding Your Spring Microgreen Garden
Once you've mastered the top varieties, spring is an excellent time to experiment with more challenging microgreens. Consider trying varieties like cilantro, basil, or even edible flowers like nasturtiums.
The forgiving spring conditions make it easier to learn the specific requirements of different varieties without the stress of extreme weather conditions.
Seasonal Growing Guides
Growing changes with the seasons. Explore our full seasonal growing guide or check out these guides:
What You Actually Need to Get Started
You don't need much to grow microgreens in spring, but the right equipment makes a real difference. Here's what to prioritize and what you can skip.
Trays and Growing Medium
Standard 10×20 inch trays work well for most home growers. You'll want two trays per crop — one with drainage holes for planting, one solid tray underneath to catch water. Avoid anything deeper than 2 inches; microgreens have shallow roots and don't benefit from extra soil depth.
For growing medium, a fine-textured seed-starting mix works better than standard potting soil, which can be too chunky for the small seeds. Many growers prefer a mix of coco coir and perlite (roughly 70/30) because it holds moisture without becoming waterlogged — particularly useful in spring when ambient humidity is already higher. Fill your tray to about 1 to 1.5 inches deep. More than that wastes medium without improving results.
Lighting in Spring
Spring's longer days give you a genuine advantage here. A south-facing windowsill that gets 6 or more hours of direct light can carry many varieties through their entire growing cycle without supplemental lighting. That said, light through glass is weaker than it appears, and overcast spring days are common depending on your region.
If you notice your microgreens leaning hard toward the window or producing thin, leggy stems, that's a signal your natural light isn't enough. A basic LED grow light — something in the 2000 to 4000 lumen range positioned 2 to 4 inches above the canopy — solves the problem quickly. You don't need anything expensive. Even a shop light with a 6500K bulb works for most varieties.
Watering Tools
A spray bottle works for the first few days of germination, but bottom watering is more reliable once seeds have sprouted. Pour water directly into the bottom tray and let the growing medium draw it up. This keeps foliage dry, which matters more in spring than in dry winter conditions because wet leaves combined with cool air and higher humidity can invite mold. Check your trays daily — in spring you may water every 1 to 2 days rather than daily.
Spring Varieties Worth Adding Beyond the Basics
Pea shoots and sunflower microgreens get most of the attention, and for good reason. But spring's temperature range opens the door to several other varieties that perform especially well this time of year.
Radish
Radish microgreens are fast — often ready in 6 to 8 days — and genuinely spicy in a way that adds bite to sandwiches and grain bowls. The Daikon variety tends to be milder than China Rose or Red Arrow if you want less heat. Radish germinates readily at 65°F and doesn't need pre-soaking. It's also one of the more forgiving varieties if you accidentally underwater for a day.
Broccoli
Broccoli microgreens have a mild, slightly earthy flavor and are one of the easier brassicas to grow. They do well at 65 to 70°F and are ready to harvest around day 8 to 10. Spring's moderate temperatures help prevent the bitterness that sometimes develops when brassicas are stressed by heat. Use a light hand with water — broccoli seeds are small and prone to damping off if the medium stays too wet.
Cilantro
Cilantro is slower than most — expect 14 to 18 days to harvest — but spring's stable temperatures make it more manageable than it would be in summer's heat. Crush the seeds lightly before planting to improve germination rates. The flavor is bright and distinctly cilantro, which makes it useful for anyone cooking Mexican or Southeast Asian food at home. It takes patience, but it's worth growing at least one tray in spring when conditions are on your side.
A Few Things That Catch New Growers Off Guard
Spring growing is forgiving, but there are a couple of honest pitfalls worth mentioning before you get started.
Mold is more common in spring than in winter. Higher humidity is mostly an asset, but it increases the risk of fuzzy white mold on the soil surface, especially under your blackout dome during germination. This is usually benign root hair, not true mold — but actual mold does happen. Good airflow (a small fan on low nearby) and bottom watering rather than overhead watering address most mold problems before they start.
Spring temperature swings can be wider than you expect. A 72°F afternoon can drop to 50°F at night in early spring, particularly near windows. Most microgreens tolerate this, but if you're growing basil — which is heat-loving and slow in cool conditions — keep it away from cold windowsills until nighttime temperatures stabilize above 60°F consistently.
Finally, seed density matters more than most beginners realize. Overcrowding leads to poor airflow and uneven germination. For small seeds like broccoli or radish, aim for a single dense layer without stacking. For larger seeds like peas, one to two layers deep before pressing down is appropriate. Getting this right from the start saves you from troubleshooting problems mid-cycle.
Conclusion
Spring offers the perfect opportunity to grow exceptional microgreens with minimal effort and maximum reward. The combination of moderate temperatures, increased daylight, and natural humidity creates ideal conditions for varieties like pea shoots, sunflower, radish, broccoli, and arugula microgreens. By following these guidelines and choosing the right varieties for the season, you'll be rewarded with flavorful, nutritious microgreens that showcase the very best of spring growing conditions. Start with these top five varieties, and you'll quickly discover why spring is considered the gold standard season for microgreens cultivation.