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Flowers to grow for an easy flower bed

Easy perennials to decorate flower beds

How to flower a garden without spending a fortune? Easy fast-growing perennials won’t need much care and will bloom for a long time. Every year, you’ll have the pleasure of seeing them thrive. They may even surprise you as they spontaneously self-sow in new spots of the garden.

Make the most of the beginning of spring to transfer your speedy-growth perennials from their nursery pots to the ground. As soon as the soil isn’t frozen anymore, these flowers can usually cope with a wet and aerated substrate that will favor deep root development.

1 – Gaura, the perfect companion plant

Gaura is a type of flower that won't need much care but blooms wellThe Gaura will quickly become one of your favorites to fill in an empty spot in your flower bed and give your growing beds some volume. It grows to form a rather large clump, about 3 to 4 feet tall (0.9 to 1.2 m), for about 1 to 1½ feet wide (30-40 cm). Perfect for the back of a flower bed, or to hide a 4-foot (1.2 m) fence together with other flowers. Its basal clump, where dozens of long, thin, neutral green leaves are clustered, sends out a great number of elegant flower scapes.

Blooming extends from spring to fall. White flowers, with 4 upright petals that are very similar to the wings of a butterfly, appear along the stems in a surprising ballet. No need to deadhead or remove wilted flowers, no fruiting to worry about, and, better still, no need to water anymore after a short while. The light blooming and neutral colors will help a nearby lily of the Nile or peony truly shine.

The pink cultivar with violet leaves, Gaura lindheimeri ‘Siskiyou Pink’ grows more slowly and smaller than others, it’s perfect for a composition in a large container together with other plants. ‘Corries Gold’, for its part, is an elegant cultivar with its yellow-mottled foliage.

Smart tip:

  • Plant in any type of soil, as long as its cool and dry.
  • Add a little bit of organic matter (compost, soil mix) in case of clay soil.
  • You can keep the flowerless clump all winter long, it looks wonderful when frost paints patterns along the wisps, but cut the whole clump back in spring.
  • Finding self-sowed gaura seedlings is pretty common.

2 – Mallow, like a flick of the magic wand

Three months are enough for a small nursery pot plant to reach the venerable shrub size of about 5 feet tall and 3 feet across (1.50 m x 1 m). You’ll find mallow plants in the “perennials” section of garden stores, since it belongs to the softwood shrubs group. Mallow, a flower that's simple but beautifulThis Malvaceae is surprisingly vigorous, it blooms from spring all the way to the middle of summer. Simply provide it with healthy garden soil, that’s deep and well-drained, even perhaps dry, and a basic amount of sun.

Pair its large pink or white flowers with annual cosmos to extend the blooming of the flower bed up to the first frosts, or surround them with landscaping roses that will highlight their beauty.

Several shades of pink are available, from the pure white blooming of the ‘Ice Cool’ lavatera (not very hardy) to the deep wine-colored pink of the ‘Burgundy Wine’, with, in the middle, the romantic pastel pink of the ‘Candy Floss’. Less vigorous forms (2-3 feet or 60-90 cm) such as the ‘Barnsley Baby’ mallow or the ‘Chamallow’ variety make it possible to grow these in containers.

Smart tip:

Feel free to tie your mallow to a lattice along a sun-filled wall, even near the sea. As time passes, keep a few branches that, as they thicken with the years, will bear the weight of the structure on their own. Older clumps tend to send offshoots out from the roots, though not so much that it becomes invasive.

  • The only work to do with this one is to cut softwood off in March, back to 4 inches above the ground (10cm). This can also be done at the beginning of winter. Cover the soil with straw or dead leaves in fall if winters tend to be very cold in your area.
  • Remember to prepare cuttings from your mallow at the end of summer, its lifespan isn’t very long. Cut a few branch tips off, and lay them down horizontally on a blend of peat and sand.

3 – Penstemon, resilient though they don’t seem to be

We usually think they’re very fragile because of the exuberant sophisticated flower petals and their semi-evergreen leafage, but they’re actually quite resilient. Penstemon, also called beardtongue, are highly resistant to drought. A downside, however, is that they really need rich soil and will have trouble coping with temperatures lower than 10°F (-12°C). The ground must drain perfectly. If winter is cold and wet, you’ll have to protect the stump with a thick layer of straw or dead leaves under a sheet of plastic tarp.

Red and white penstemon flowersFrom among the more hardy hybrids that can take colds down to 5°F (-15°C), try the ‘Andenken an Friedrich Hahn’ for its ruby-red colors. It mounds happily in every direction to about 2 feet away (60 cm). ‘Evelyn’ will grow slightly taller, about 2½ feet high (80 cm) and will produce a cloud of little pale pink flowers with a white center, whereas the ‘Firebird’ variety presents intense carmine red hues.

That said, some pure Penstemon species are still much hardier than these hybrids. They can resist colds as intense as -4°F (-20°C):

  • Penstemon barbatus raises large scapes up to 3 to 4 feet high (1 to 1.2m), with average flowers that are red or salmon-pink. It forms a loose clump of narrow lance-shaped leaves and blooms from July to October.
  • Penstemon hirsutus has stems that are covered with fuzz, bronze-colored foliage and lavender blue flowers that is more or less intense from May to July. The Penstemon hirsutus ‘Pygmaeus’ cultivar is ideal in rocky terrain with its compact, 6-inch clump (15 cm).

Smart tip:

Do go ahead and cut spent flower scapes back to the ground to trigger a second wave of blooming. Divide the clumps in spring.

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