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Spinach, Imperial Star Hybrid Seeds
Spinacia oleracea
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Product Information
Spinach Imperial Star Hybrid Seeds are known for their cold-tolerance and high yield, making them a favorite for gardeners seeking a reliable, early-season crop.
Imperial Star is a fast-growing Asian type of Spinach that has smooth, medium green leaves. The upright plant habit with strong sturdy leaf stalks makes it easy to harvest. This cold-tolerant variety is resistant to bolting and downy mildew making it an excellent choice for Canadian gardens.
- SKU: 141690
- Common Name: Spinach
- Botanical Name: Spinacia oleracea
Growing Information
Grows
Best In:
Full sun|Partial sun
Days to
Germination:
7 - 21 days
Water
Needs:
Average 2.5-5 cm (1-2") per week
Days to
Maturity:
35 - 40 days
Best
Container Size:
30 cm+ (12"+)
Key Features
- Plant Type: Vegetable
- Plant Lifecycle: Annual
- Fill Weight (grams): 2 g
- Approximate Seed Count: 160-180
- Characteristics: Semi savoy-type
- Planting Method: Direct Sow
- Color: Green
- Water Needs: Average 2.5-5 cm (1-2") per week
- Landscape Use: Edible Garden
- Resistance: Bolt|Downy mildew
- Tolerance: Cold
- Companion Planting: Plant near beans, cilantro (coriander), eggplant, oregano, peas, rosemary, strawberries. Peas and beans offer a natural form of protection for spinach, creating shade. Cilantro, oregano, and rosemary are believed to have insect-repelling properties.
- Flavor: Succulent and rich
- Preparation Ideas: Pick young for baby greens.
Instructions
-
Growing Instructions:
- Planting Depth: 1.3 cm (1/2")
- Seed Spacing: Sow spinach seeds roughly 2.5 cm (1") apart in rows, keeping rows approximately 40 cm (16") apart.
- Plant Spacing: 25 cm (10")
- Instructions for Nutrient Care: Feed plants SUPERthrive once per week. Mix 1.2 ml (1/4 tsp) per 4L (1 gallon) of water in a watering can and apply solution to the base of the plants.
Spinach does not transplant well and seeds can be sown directly in the garden in early Spring as soon as the soil can be worked. Soil temperature (not air temperature) should be between 4-20° C (40-68°F) . Space seeds and plant to the depth indicated below. Press seeds into the soil to ensure good contact and cover with 1.3 cm (1/2") of soil. After planting, water seeds with a gentle mist or shower. It is critical to keep the soil consistently moist, but not soggy during germination. When your seedlings reach a height of a few centimetres (inches) and have developed 2 or 3 pairs of leaves, it is important to thin them out, according to the plant spacing indicated below. Do not allow the soil to become dry, as young plants have underdeveloped roots and can quickly dehydrate, particularly in windy conditions. Spinach grows quickly and more seeds can be succession planted every 2 weeks days until the temperature exceeds 23°C (75°F). Once the temperature rises, spinach tends to bolt. Planting can resume when the temperature turns cooler at the end of Summer and early Fall.
Click here to read more information on planning and planting a garden.
Suggestions
Growing Suggestions:
- Spinach prefers to grow in air temperatures of 10-15°C (50-60°F).
- Use a row cover during the first few weeks of seedling growth to protect plants from insect pests.
- Spinach can be harvested using the "cut and come again" method. To do this, simply trim individual leaves with garden scissors, starting with the outer leaves. Let the young inner leaves remain to continue growing for a later harvest. Or, you can cut down the whole plant at once if you want a large harvest. If you cut about 2.5 cm (1") above the crown or base of the plant, the plant will send out a new flush of leaves.
- It is important not to wait too long to harvest or wait for larger leaves, as spinach can become bitter very quickly after maturity. Day length and temperature are also important factors to consider. When days become longer (about 14 hours or longer) and temperatures rise, spinach can start to bolt. Bolting is when plants stop vegetative growth and start flowering, marking the end of the harvest. If you notice that your spinach plants are starting to bolt, it is best to pull the plant and use the leaves. You can try to slow the bolting process by pinching off the flower/seed heads, keeping the soil moist, and providing shade such as a row cover.
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