When you think of nasturtiums, those bright gold and yellow blooms might pop into your mind. (So might furniture from the early 70s). As pretty as they are, they don’t fit everyone’s garden aesthetic. Bold is beautiful, but Nasturtium Moonlight’s subtly pale, two to three-inch butter-and-cream-hued flowers fit in beautifully anywhere the standard variety doesn’t.
Like classic nasturtiums, Moonlight is a vining annual that thrives in USDA Hardiness Zones 3-10. They require full sun but otherwise can handle a little neglect, making them good candidates to cover up old fences or crumbling walls. The six-foot vines can be trained to climb vertically or left to sprawl. They make excellent groundcovers, with their dense, eight- to fourteen-inch tall soil-shading foliage and profuse flowers. Unlike many ground covers, though, nasturtium’s easy to control; it dies back during the first hard frost, and is easy to remove by hand if it gets unruly.
Since all parts of the nasturtium—flowers, stems, leaves, and seeds—are edible, they add a fresh, peppery taste to salads, or serve as attractive and tasty garnishes. The subtle colors of Moonlight make this heirloom an excellent cut flower, and the variety is a rare but sought-after feature of bespoke bridal bouquets and wedding decor.
Whether or not you’re familiar with nasturtiums, you’ll appreciate their rounded, soft-textured foliage as much as you will the trumpeted blossoms. They’ll need a little finessing to germinate, but once they get going they’re easy to grow and this variety in particular will add an exotic—and romantic—touch to your garden.
Quick Facts
- Type: Flower
- Color: Creamy Yellow / White
- Height: 8″ to 14″ Tall
- Width: 70″ to 80″ Spread
- Season: Annual
- Zones: 3 to 10
- Environment: Full Sun
Sowing The Seed
Nasturtium seeds have a tough outer shell, which can be scarified to improve germination. Nick the seeds with a knife, or sandpaper and soak them in warm water overnight. Once this has been done, you can sow the seeds either indoors, or directly outdoors. If started indoors, sow the seeds in peat pots, 6 to 8 weeks prior to the last forst. Peat pots will help prevent root shock when transplanted. Sow the seeds at a depth of 1/2” under topsoil. Transplant entire pots, or direct sow outdoors when the weather has warmed and all danger of frost has passed.
Growing Conditions
Nasturtium will thrive in areas of full sunlight, with temperatures of at least 65F or higher. They require poor soils, which will promote more blooms. The sowing medium should be well drained as well. To increase your drainage, we recommend that you add a light compost to any areas containing hard, compact soil. Water the seeds daily until germination has successfully occurred.
Germination & Growth
Nasturtium seeds typically take anywhere between 7 and 10 days to germinate. The plants will grow to a mature length of 70 to 80 inches long. The plants can be spaced about 18 to 24 inches apart from one another. The 3 inch, pale yellow blooms appear almost white in some instances, and will attract an array of beneficial insects to the garden, such as bumblebees, honeybees, butterflies & hummingbirds as well. The leaves, seeds, stems & flowers are all edible from Nasturtium plants.