Harvesting your microgreens at their prime not only ensures you will get the full nutritional value and ultimate flavor, but it also maximizes yield and improves their shelf life. Microgreens can be delicate plants, however, and require precise handling to ensure that the quality is not compromised during the harvesting process. This detailed guide elucidates when it is the perfect moment to reap microgreens to get the best out of your yield.
Microgreens are young vegetable greens that fall somewhere between sprouts and baby leaf vegetables. Different types of microgreens, such as radish, arugula, spinach, kale, or basil, are ripe for harvesting at various stages of growth. Defining the perfect moment to harvest your microgreens mainly depends on these factors: the type of microgreen, their size, color, leaf development, and taste.
In general, most microgreens are ready for harvest 7-14 days after germination, once the plants have developed their first true leaves. The ‘true leaves’ stage, also known as ‘cotyledon stage’, of a microgreen, is a clear indicator that it’s ripe enough for harvesting. This stage is easy to identify, with the plants exhibiting two tiny, leaf-like structures.
Interestingly, microgreens do not all grow at the same speed. For instance, radish and mustard microgreens can be ready to harvest in 7-10 days, while beet and amaranth microgreens may take up to 14-20 days. Therefore, it’s crucial to observe your microgreens’ growth patterns regularly. Having an identification chart or growth guide available can ease this process.
The size of the microgreens can also be an early indicator that the plants are ready for harvest. Ideally, at the time of harvesting, microgreens should measure from 2 to 3 inches in height, which is about the size of a typical mature microgreen. Any smaller, and you run the risk of not getting the nutrition and flavor punch that microgreens offer. If they are larger, you might be moving into baby green territory, which changes the flavor profile and texture of the crop.
Color is another crucial factor when deciding the perfect moment to reap your microgreens. Most variations of microgreens should be vibrant in color, a sign they have absorbed enough sunlight and nutrients and are ready to harvest. For instance, sunflower microgreens should exhibit a bright green color, while red amaranth microgreens will give off a beautiful and striking reddish-purple hue. Any discoloration or signs of yellowing, wilting, or browning may indicate that the microgreens have past their prime harvesting period.
Assessing leaf development of your microgreens can provide insights into their maturity. Fully developed leaves – proportionate in size to the stem – suggests that the microgreens have reached their peak growth phase. At this stage, the nutrition content is at its highest, which is essentially why most people grow microgreens!
Now, let’s not forget about the taste. Flavor is a crucial determinant of the right harvesting time. Every microgreen variety has a unique taste profile. Radish microgreens, for instance, should have a spicy flavor while pea microgreens should taste sweet. Harvesting at the right time ensures that these microgreens have developed their full, robust flavors. Regular taste tests should be done to find out if your microgreens are ready to harvest based on their flavor.
Now that we’ve established the ‘when’ of harvesting microgreens let’s delve a bit into the ‘how.’ We recommend a clean, smooth cut just above the soil line when harvesting. This minimizes damage to the remaining plant and prevents potential soil contamination. A sharp, clean pair of scissors or a clean knife is usually the best tool for the job.
It is also best to harvest microgreens right before you plan to consume them. If that’s not possible, then remember that proper storage is key to maintaining their freshness. Microgreens, once harvested, should be gently rinsed under cold water, then thoroughly but gently dried. They can be stored in the refrigerator, in a loose, breathable bag, and usually stay fresh for about five to seven days.
In conclusion, identifying the perfect moment to harvest microgreens primarily depends on the type of microgreen, the size, color, leaf development, and taste. By considering these factors, you can be sure to harvest your microgreens at the optimal time to ensure maximum yield, flavor and nutritional value.
