Growing Spinach in Container Seed to Collect Guide

Growing Spinach in Container Seed to Collect Guide

Spinach is a popular green vegetable to grow in gardens, but it is also an ideal vegetable to plant in pots. Compact plants do not require a lot of root space and go from seed to harvest very quickly. Growing spinach in containers right outside my kitchen door means that I always have a supply of tender leaves on hand for salads and ready-made meals. The key to success in growing spinach in pots is to choose the best types of containers, fill them with a rich culture mixture and provide constant humidity. Below you will learn everything you need to know about growing spinach in containers. Keep reading!

Why grow spinach in containers?

Spinach is a cool-season crop related to Swiss chard and is grown for its juicy dark green leaves. Depending on the variety, spinach leaves can be smooth, semi-savoyard or super wrinkled with plants from 6 to 12 inches tall. It is an easy crop to grow, but has specific requirements. If these needs are not met, the spinach plants can be connected quickly. Bolt formation occurs when plants switch from vegetative growth to flowering, which means the end of the harvest. For gardeners who have little garden space, poor or infertile soil, or a garden on a patio, balcony or terrace, growing spinach containers is an effective solution.

When to plant spinach in containers

Spinach grows best in cool weather and is an ideal crop for spring and autumn. In fact, spinach is one of the first crops I plant in early spring and I sow my first batch of seeds 6 to 8 weeks before the last expected frost date. This vegetable can be planted when the soil reaches 45 degrees F (7 degrees C). In warm climates, spinach is grown in autumn and winter.

Since we love spinach, I plant more seeds every two weeks to ensure a continuous harvest. As spring turns into summer and the temperatures regularly exceed 26 degrees, I stop planting spinach because it does not grow well in hot and dry weather. Instead, I switch to heat-resistant vegetables such as amaranth, New Zealand spinach and Malabar spinach.

At the end of summer, the days shorten and the temperatures cool down. This means that it’s time to plant spinach again. My first end-of-season seedlings start 6 to 8 weeks before the first autumn frost date. These plants continue to produce leafy vegetables until after autumn. If they are placed in the shelter of a greenhouse or a cold frame, the spinach pots can last well in winter, even in northern climates.

What types of containers should you use to grow spinach

When it comes to pots and planters, there are a lot of choices. I grew spinach in plastic pots and buckets, wooden planters and fabric planters. It is important that the type of container you are using has drainage holes so that excess rainwater or irrigation water can drain out. If your pot does not have drainage holes, it is easy to add them to plastic or wooden containers using a drill with a quarter-inch drill.

Also, you need to take into account the size of the pot. Spinach plants produce a taproot and a fibrous root system. If you are growing spinach for young shoots, a pot 6 to 8 inches deep is enough. If you want large, mature spinach plants, choose a container 10 to 12 centimeters deep.

The best soil for growing spinach in containers

Give your spinach plants a good start by filling the containers with a mixture of potting soil and a source of organic matter such as compost or rotted manure. I like to use about two-thirds potting soil and one-third compost. Spinach needs a good draining culture medium, but also a medium that retains moisture. If the plants dry out, they will get stuck. The addition of organic matter such as compost increases the moisture-retaining capacity of the potting soil.

I also add a slow-release organic vegetable fertilizer to the growing mixture. This provides nitrogen, phosphorus, potassium and other nutrients. If you prefer, you can apply a liquid fertilizer such as a fish emulsion or manure tea every 2 to 3 weeks instead of using a granular product.

How to plant spinach in pots

Once you have chosen your containers and filled them with your growing mixture, it is time to plant. It only takes a minute or two to plant spinach in pots. The seeds can be sown directly or started indoors. I prefer to lead the sow, but there are advantages to giving the spinach a head start inside. Find out more below.

Direct sowing of spinach-spinach seeds germinate in about 5 to 10 days, depending on the temperature, and the seedlings develop quickly. I plant spinach seeds a quarter to a half centimeter deep in pots. They are 1 to 2 inches apart, and I finally diluted them to 2 to 3 for the baby leaves. I prefer to grow spinach in pots as a baby crop. For normal-sized plants, dilute the spinach 4 to 6 centimeters apart.

Spinach has a reputation for being difficult to transplant, so most gardeners sow the seeds directly outdoors. That said, I find that spinach transplants are good as long as the plants are hardened and moved to the garden while they are still small. Spinach germination can sometimes be uneven when sown directly, and transplanting guarantees a bed full of greenery-no blanks. Start planting the seeds within 3-4 weeks before planning the hardening and transplanting of the seedlings. I plant in a seed box under my grow lights. It is best to move young plants to pots when they have two sets of real leaves.

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