growing nasturtium indoors

Start indoors in pots: Because they are large seeds, I like to start with a relative large, 2-3/4" or 3" seed starting pot. Put two seeds (1" deep) in each pot and grow them under lights or in a bright location, such as a south-facing window. It takes about 10 to 12 days for nasturtiums to germinate.

Can nasturtiums be grown indoors?

If you bring your nasturtiums indoors, they do well in a sunny windowsill and prefer a room with warm days and cool nights. Don't overwater the plants, keeping the soil moist but not soggy. ... Choose upright cultivars rather than faster-growing vining types for indoors so the plants take up less room.

Can you grow nasturtiums in pots?

This plant is happy to be in a pot, partly because it's a born survivor. You don't even need good compost. You can sweep up the dirt on your patio and plant up in that if you want. If you give nasturtiums too much love in the form of nutrients, you get all leaf and none of those jolly flowers.

Do nasturtiums grow all year round?

Nasturtiums will self seed, so they will come back year after year. Sow seeds directly in a sunny or partly shady area of your garden in the spring or summer.

Do nasturtiums grow back yearly?

They germinate quickly, grow quickly too, and the flamboyant flowers are large and colourful. But while the familiar nasturtium (Tropaeolum majus) is an annual, it can also be grown from cuttings.

Do nasturtiums self seed?

Don't forget flowers either – annuals such as cornflowers (bachelor's buttons), calendula, nasturtiums and poached egg plant, together with biennials such as foxgloves, honesty and teasel are all robust self-seeders that are loved by wildlife too.

Do nasturtiums need full sun?

Nasturtiums do well in poorer soils and do not typically need extra fertilizer (unless your soil is extremely poor). Too much nitrogen will encourage more foliage than flowers. ... Plant nasturtiums in full sun (6–8 hours of sunlight) for the best results.

Are nasturtiums poisonous to dogs?

Annuals. You can have colorful annual plants to grow for borders, garden beds and cutting flowers that are safe for dogs. ... Grow nasturtiums not only for their jewel-like flower colors but to give color and peppery taste to salads and garnishes.

Should I soak nasturtium seeds before planting?

Some gardeners like to soak nasturtium seeds before planting to speed germination. If you do, remember to soak them no longer than eight hours to avoid losing your seed to rot. Nasturtiums like sandy, well-draining soil without too many nutrients, but they do like ample water.

Do nasturtium seeds need to dry out before planting?

Storing Nasturtium Seeds

Let them dry completely. If any seeds are green, wait until they have turned brown before you store them. ... Just transfer all of the dried seeds to a jar and store it in the refrigerator until you're ready to plant.

Do nasturtiums bloom all summer?

Know Your Nasturtiums

They can appear in many different colors, like red, orange, cream and yellow among others, and they usually bloom from summer to fall. They tend to have a rather spicy fragrance and normally appear as either climbers or sprawling bushes.

How long does it take to grow nasturtiums from seed?

Put two seeds (1" deep) in each pot and grow them under lights or in a bright location, such as a south-facing window. It takes about 10 to 12 days for nasturtiums to germinate. When the seedlings have a few sets of leaves, pinch out the weaker seedling, leaving one per pot.

How late can you plant nasturtiums?

Nasturtiums can be planted from seed indoors five to six weeks before the last spring frost, or planted outdoors once the danger of frost has passed and the soil temperature has warmed to 65 degrees Fahrenheit.

Do I deadhead nasturtiums?

Deadhead and cut back plants after flowering. Cut back the old flower stems of perennial nasturtiums after flowering and the old foliage in autumn.

Are nasturtiums hard to grow?

Nasturtium plants are easy to grow and may be climbing, cascading or bushy. Care of nasturtiums is minimal; in fact, nasturtium plants are one of those specimens that thrive on neglect. Rich, fertile soil or too much fertilizer results in lush foliage growth and few nasturtium flowers.

Are nasturtiums a perennial?

Nasturtium is an easy-to-grow annual. Nasturium is an easy-to-grow, warm-season annual (perennial in zones 9 -11) with distinctive leaves and brightly colored flowers. Nasturtium is the common name of Tropaeolum majus.

How high will nasturtiums climb?

Many nasturtium varieties grow in a long, vining habit, climbing to heights of 8 or 10 feet when given support or trailing along the ground when support is unavailable. These plants are good choices for arbors, tall trellises or along fences.

Do nasturtiums spread?

Once they are established, nasturtiums will continue to spread and bloom until the first frost, with little more than the occasional sprinkling. Nasturtiums basically come in two forms: compact and trailing. The compact variety is low and busy, usually staying at about 12" tall.

Do nasturtiums have deep roots?

Planting Nasturtiums

Nasturtium seeds are large, about the size of a dried pea, and need to planted fairly deep in the soil. ... Nasturtiums produce a taproot and don't like to have their roots disturbed, which is why direct sowing the seeds is often recommended.

Do slugs like nasturtiums?

If you want to keep slugs away from spring-flowering Primula (Primrose) surround them with jolly Narcissus (Daffodils) and Nasturtiums. These are plants which slugs seem to prefer.

What grows well with nasturtiums?

Nasturtiums are companions to broccoli, Brussels sprouts, cabbage, cauliflower, cucumbers, kale, kohlrabi, pumpkins, radish, squash, tomato, and potato. Members of this family make excellent companions.