Leafy greens
Leafy greens, such as lettuce, arugula, rapini, romaine, endive, dill, mustard, and collard, are not only versatile but also relatively easy to grow. Their adaptability to cool weather makes them ideal for spring and fall planting, adding to their appeal for home gardeners.
If you plant them in the bed (without interplanting), you can choose different varieties so they will grow and mature in other periods. Or you can select a smaller place to grow and then plant the same plants/seeds after some weeks, so you will always have fresh leaves to harvest.
Planting and harvesting leafy greens
Planting and propagating
Collecting seeds from leafy greens is a simple process. As the plant matures, it will grow taller, produce fewer leaves, and eventually form flowers. Once these flowers dry, they contain seeds that are ready for harvesting. Be sure to collect the seeds before the wind scatters them. To make this easier, cut the entire dried flower head and store it in a paper bag for the next season. Each seed has the potential to grow into a new plant. The flowers are often beautiful, ranging from white and yellow to purple.
When planting, we can sow leafy greens directly into the garden bed or start them indoors in a greenhouse. Direct sowing works best for varieties that don’t form large heads, as these types remain smaller and produce abundant leaves. Starting them indoors or carefully spacing them is essential for varieties that form larger heads. Without sufficient room, these greens may not develop properly. Alternatively, overcrowding can lead to issues like fungal diseases and mold, so thinning the seedlings is essential if direct sowing is used.
Leafy greens prefer well-draining, loose soil rich in organic matter. A slightly acidic to neutral pH is ideal.
Sunlight
Most leafy greens grow best with 4–6 hours of sunlight daily. However, they can tolerate partial shade, which helps prevent bolting in hotter climates. Growing them in a hot summer period is not recommended because they will immediately grow tall and produce flowers.
Watering
Water leafy greens regularly, but do not overlog. Regular water will lead to tasty leaves because if they don’t have enough water, they will create yellow leaves with a bitter taste. They can be watered on the leaves (also because the opposite would be quite impossible). When they go to the seeds, don’t forget to water them – if they dry before they will not create seeds.
Harvesting
Harvest leaves from the outside for “cut-and-come-again” growth or young leaves with milder flavour. For varieties such as romaine, wait until the head forms before harvesting.
When the plant starts to grow tall and produce flowers, the number of leaves decreases, and they have a bitter taste.
Interplanting and companion planting with Leafy greens
Interplanting and companion planting with leafy greens maximizes garden space, enhances plant health, and deters pests. Leafy greens grow quickly and have relatively shallow root systems, making them excellent candidates for planting alongside various crops. The dense foliage of leafy greens shades the soil, reducing weed growth.
Good Companions for Leafy Greens
- Carrots: Carrots have deep roots and grow well alongside shallow-rooted leafy greens. The greens can also shade the soil, helping to keep carrots cool.
- Radishes: Quick-growing radishes can be interplanted with lettuce or arugula as they mature before the greens need more space.
- Beets: Like carrots, beets have deep roots and complement leafy greens without competition.
- Tomatoes: Leafy greens thrive in the partial shade provided by taller tomato plants and can benefit from the cooler microclimate underneath.
- Herbs: Dill, cilantro, and parsley pair well with leafy greens, attracting beneficial insects while occupying minimal space.
- Onions and Garlic: Their strong smell deters pests that target leafy greens, like aphids and cabbage moths.
Bad Companions for Leafy Greens
- Brassicas (Broccoli, Cauliflower, Cabbage): While they belong to the same family as mustard greens, kale, and other brassicas, planting them together can attract shared pests and diseases.
- Corn: Corn shades out leafy greens, which need consistent sunlight to grow well.
Harvest times