True Watercress

True Watercress

SKU: MS496
True Watercress seeds produce a perennial cress that is rich in vitamins and has a delicious, distinctive taste for salads and vegetarian dishes. Little, dark-green leaves grow on crisp stems that come from thick, long roots. Read More

Exposure Full sun to partial shade

Matures in 60 days

Season Cool season

Shipping & Returns

West Coast Seeds ships anywhere in North America. However, we are not able to ship garlic, potatoes, asparagus crowns, bulbs, onion sets, Mason bee cocoons, or nematodes outside of Canada. We regret, we cannot accept returns or damages for orders outside of Canada. The minimum shipping charge to the US is $6.99.

More details about True Watercress

Nasturtium officinale. True Watercress seeds produce a perennial cress that is rich in vitamins and has a delicious, distinctive taste for salads and vegetarian dishes. Little, dark-green leaves grow on crisp stems that come from thick, long roots. Direct-seed watercress about 5mm (1/4") deep and 1cm (1/2") apart, ideally in full sun near clear running water. Thin plants to 10cm (4") and keep very well watered. Watercress does not thrive in acidic soil, so spread enough lime in the growing area to bring the pH as close to 7.0 as possible. Well finished compost is the other trick that will keep watercress growing rapidly. If you fail with watercress in your summer garden, try planting it beneath a cloche row cover for winter harvesting. The low light levels and cool temperatures seem to be ideal.

Matures in 60 days. (Open-pollinated seeds)

Quick Facts:

    • Delicious, distinctive taste for salads and vegetarian dishes
    • Small, dark-green leaves grow on crisp stems
    • Direct-seed in full sun near clear running water
    • Open pollinated seeds
    • Matures in 60 days

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All About True Watercress

Difficulty

Difficulty
Easy

We Recommend:

We Recommend: West Coast Market Mix (MS489) isn’t just for the West Coast. It’s a fast-growing blend of lettuces, chicories, arugula and herbs intended to be harvested as baby greens. Tasty! Enjoy repeated harvests of crisp and succulent salad greens.
For Urban Gardeners: City Garden Blend (LT450) is lovely. Several different seeds are pelleted together, so you only need to plant three or four pellets in a 3 to 5 gallon container. Watch as a beautiful selection of different green and red lettuces grows in, and then start harvesting! This blend requires very little space, and can be accomplished on a sunny windowsill.

Season & Zone

Season & Zone
Season: Cool season
Exposure: Full sun to partial shade

Timing

Timing
Seed every three weeks from just before the last frost date until the end of summer for a continuous harvest. Provide frost protection with a cloche or heavy row cover when frost looms in the fall. Many mesclun types and mixes will continue to grow all winter where winters are mild.

Starting

Starting
Plant in a block or in a wide row. Sprinkle the seeds evenly over prepared, moist soil. Try to space seeds about 1cm (½”) apart. Cover lightly with soil, and firm them in. Four grams of seed will plant a 12m (40′) row that is 7cm (3″) wide, so don’t plant the whole packet at once. For container growing, choose containers that are at least 10cm (4″) deep. Wider is better. The most common mistake is over-planting.

Growing

Growing
Moderately fertile soil – particularly if you’re planning mutliple harvests. Dig in 1 cup of complete organic fertilizer for every 3m (10′) of row. For containers, use peat or coir based mix with compost added. Water regularly. If growth slows after harvest, use a bit of kelp or fish based fertilizer to provide a boost of nutrition for the next growth spurt.

Harvest

Harvest
There are two methods of gathering salad greens. You can use scissors to cut everything about 2-5cm (1-2″) from the ground, when the plants are about 10-15cm (3-4″) tall. Or, you can pick individual leaves as they’re needed. The first cutting may contain more brassicas than lettuces (arugula, mizuna) but if you cut the mix back when the leaves are still small, the lettuce will catch up. The salad greens will regrow for a second harvest in another 2 or 3 weeks.

Diseases & Pests

Diseases & Pests
Slugs love baby greens and flea beetles love brassica leaves.

How to Grow Salad Greens

Step 1: Timing

Seed every three weeks from just before the last frost date until the end of summer for a continuous harvest. Provide frost protection with a cloche or heavy row cover when frost looms in the fall. Many mesclun types and mixes will continue to grow all winter where winters are mild.

Step 2: Starting

Plant in a block or in a wide row. Sprinkle the seeds evenly over prepared, moist soil. Try to space seeds about 1cm (½”) apart. Cover lightly with soil, and firm them in. Four grams of seed will plant a 12m (40′) row that is 7cm (3″) wide, so don’t plant the whole packet at once. For container growing, choose containers that are at least 10cm (4″) deep. Wider is better. The most common mistake is over-planting.

Step 3: Growing

Ideal pH: 7.0

Moderately fertile soil – particularly if you’re planning multiple harvests. Dig in 1 cup of complete organic fertilizer for every 3m (10′) of row. For containers, use peat or coir based mix with compost added. Water regularly. If growth slows after harvest, use a bit of kelp or fish based fertilizer to provide a boost of nutrition for the next growth spurt.

Step 4: Germination

Days to maturity: From direct sowing.

Step 5: Harvest

There are two methods of gathering salad greens. You can use scissors to cut everything about 2-5cm (1-2″) from the ground, when the plants are about 10-15cm (3-4″) tall. Or, you can pick individual leaves as they’re needed. The first cutting may contain more brassicas than lettuces (arugula, mizuna) but if you cut the mix back when the leaves are still small, the lettuce will catch up. The salad greens will regrow for a second harvest in another 2 or 3 weeks.

Tips!

Disease & Pests: Slugs love baby greens and flea beetles love brassica leaves.

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