Create beautiful planters

From mid-May, the risk of frost is over, garden centers offer you a vast choice of plants that allow you to create compositions with perennials, annuals, foliage plants, mixtures of colors and textures, flower shapes, plant origins.

Be creative! But before you start, here are a few tips to help you create beautiful planters of about 50 centimeters:

Choose a quality potting soil by asking for advice at your point of purchase.

Incorporate a slow-release fertilizer into the potting soil that will provide "food" for your plants all season long and make maintenance easier.

Explore the different types of planters available to you: enamel, plastic, terra cotta, zinc or, why not, wood. Try out the plants you have chosen in the planter before planting, to make sure your choices are right.

Place your plants in two rows, the first row being the place of choice for hanging plants and the second row being recommended for upright plants. This way, you have a front and a back row, and your planter becomes a 600 square centimeter mini-mass!

Always think of a plant with foliage, which highlights the flowering plants and gives more lightness to the association: Festucaglauca, Plectranthus, Helichrysumitalicum, Carexbuchananii, variegated mint, Helichrysum microphylla.

A touch of white is essential for very bright colors or too dark, it softens the whole and brings clarity.

Choose carefully the plants you associate: avoid associating a plant with a very strong development with a plant with a small development, otherwise the first one will take over the second one and you will obtain an unbalanced association. Ask your horticulturist or the department manager of the garden center for advice.

Think about the evolutionary side of the planter, it is not necessary to have all the plants flowering at the same time. Play on the early season to be able to discover other flowers during the season.

How to winterize an osteospermum in a pot ?

Originally from South Africa, the Cape Daisy is not a hardy plant, it can only stay in the garden in winter in regions where frost does not occur. Everywhere else it is advisable to grow it in a pot in order to winter it in a sheltered place to preserve it from one year to another.

A good cleaning

Everything starts with a good cleaning. Your plant has just spent a season in the garden blooming abundantly and offering a breathtaking spectacle under the sun. Because the flowers of the Dimorphoteca (another name for the Cape Daisy), only open in the sun, which is one of their particularities.

In autumn, it is time to cut off all the faded flowers but also to remove the dried or yellowed leaves. Clear the center by cutting off any stunted or criss-crossing stems and then prune the plant along the contour of the pot, which will save you space when storing.

As for the height of pruning, cut at about 15 cm from the base without worrying, your plant will branch out more beautifully the following spring.

Now, take care of the soil by removing all the plant residues present on its surface. Take advantage of this to pull out any unwanted weeds that may have invaded the plant to limit competition for water and nutrients with your plant during its wintering.

Then check the general health of the plant, even if the osteospermum is rarely visited by parasites. However, spray nettle manure as a preventive and natural insecticide. If you find traces of diseases or parasites, remove as many affected parts as possible, treat with plant purines and quarantine the plant, as it would soon contaminate all the other overwintered plants. Indeed, confined in a room, and even more so if it is heated, the plants have a hard time being protected by the natural predators of their parasites present outside. The heat provides a favorable ground for the development of dormant larvae: beware!

Once the cleaning of the plant is done, let's go to the pot which can also shelter some snails or slugs hidden on the shady side or under the pot. Use a sponge with black soap and warm water on the outside of the pot. This will remove moss and tiny parasite larvae and eggs that may be hiding there.

Wintering osteospermum in a room

Choose a frost-free room to overwinter the Cape Daisy. If it is cold (not less than 5°C), it will endure it as long as it does not freeze and the substrate remains almost dry.

It is therefore unnecessary to water it and even less to bring fertilizer to it.

If you winter it in a greenhouse or heated veranda, water once every 10 to 15 days when the substrate starts to dry completely. Never leave water in the cup during wintering.

In the spring, when all risk of frost has been eliminated, bring your plant out again and gradually get it used to full sun. You will be able to water it again normally and to make a good contribution of dried blood and powder of crushed horn to see it starting again and blooming abundantly.

Taking good care of geraniums

Geraniums are the kings of the balcony. Let's see how to take care of them.

To take care of these plants, let's start by making an important distinction: in everyday language, the name "geraniums" often refers to plants that actually belong to the Pelargonium genus. Used on balconies in pots or window boxes, they are not very hardy and need to be kept frost-free during the winter.

Geraniums are perennial plants, their aerial part fades and disappears in winter; most of the real geraniums resist to -15°C, they are hardy, solid, very easy to maintain and allow the creation of imposing massifs over the years.

These two very distinct species belong to the Geraniaceae family. 

Pelargoniums

They are the kings of balconies: used in window boxes, the ivy varieties with beautifully cut foliage offer cascades of flowers that are constantly renewed throughout the summer. The zonal pelargoniums will be used in pots for their upright habit and their wide and rounded foliage often marked with a very characteristic dark zone. Many hybrids with white, cream, pink or yellow variegated foliage will bring a touch of originality to your pots. Fragrance lovers will not be left out thanks to the varieties with fragrant foliage that can be crumpled to give off surprising notes of mint, lemon grass, pine or even rose. Pelargoniums with large flowers are more fragile but nevertheless spectacular, forming magnificent bushy plants especially adapted to the culture in jars.

The growing conditions for Pelargoniums differ little: the soil must be very rich and well drained to avoid water stagnation at the roots which would rot the plant. A mixture of good potting soil enriched with fertilizing materials and light sand will suit them perfectly. The exposure should be very sunny and warm in a well ventilated space. The secret to obtain an abundant bloom lies in a very regular contribution of "special geranium" fertilizer (once a week) on a wet substrate so as not to burn the roots. The soil should only dry on the surface between two waterings and the faded flowers as well as the damaged leaves should be removed progressively.

You can easily take cuttings from your Pelargoniums in the spring by taking 10 cm long stems and rooting them in the shade in a mixture of sand and potting soil in equal parts. Never let this mixture dry.

As soon as the first cold weather arrives, put them in a ventilated and not very heated room, protected from frost. Reduce the watering to induce a resting period, and take them out only when the weather is fine and there is no risk of frost.

Geraniums

Geraniums are excellent bedding plants, and they thrive at the foot of shrubs, which provide them with soft, subdued light, good air humidity and the temperate temperatures they need. Plant them in rich soil to which you have added a nice amount of Brown Gold® at planting time. The soil should not dry out in summer, but should never be soggy. Contrary to pelargoniums, geraniums do not require any particular care and can even become invasive because they reseed themselves abundantly. Your only work will be to cut the faded foliage in early spring to allow the new shoots to develop well.

Feeding potted plants well

Plants grown in pots quickly use up the reserves that the substrate can offer them. This results in deficiencies and the plants are more prone to diseases and parasites. To avoid these problems, it is important to know how to feed them well.

A substrate always at the top

The root system of the plant lives in a restricted substrate when it is cultivated in pot. Contrary to a plant in the ground which can 'send' its roots deeper or spread them out at will, a potted plant can quickly be in pain and lacking in nutrients.

To overcome this problem, you must first make sure that the chosen substrate is of very good quality and corresponds to the real needs of the plant.

After a while, despite everything, the roots end up occupying the whole pot, it is then time to repot in a larger container, ideally in early spring. When repotting, add slow-release fertilizer balls to the substrate, or even crushed horn to facilitate the restart.

If the pot is too heavy or too large, you can consider a topdressing with good potting soil and compost to feed your plant.

Natural fertilizers

Throughout its growth, the plant needs to be accompanied. Natural amendments such as compost, coffee grounds or tea leaves will bring nutrients to your plants.

Purins are also very effective, especially nettle purin which really boosts vegetation.

Keep also the water of cooking of your vegetables which abounds in nutrients for your plants.

Finally, think of organic fertilizers to scratch every two months during the growth period, such as ground horn powder or dried blood, which work wonders without ever risking burning the roots or weakening your plants.

Chemical fertilizers

Chemical fertilizers have a 'kick-start' action because they bring nitrogen (N), phosphorus (P) and potassium (K) in rapidly assimilable quantities.

These fertilizers are divided into several families.

The best known are liquid fertilizers that are added to the water regularly (always after a very abundant watering to avoid burning the roots and respecting the doses). These fertilizers are dosed in a very specific way according to the targeted plants. The N/P/K dosage varies: for example, for green plants, the proportion of nitrogen will be more important to promote the development of foliage, while for flowering plants, phosphorus and potassium will be preferred. Fortunately, manufacturers have thought of everything and package their fertilizers under meaningful names such as 'Special fertilizer for indoor plants', 'Special fertilizer for geraniums' etc...

Liquid fertilizers also exist in foliar form, which means that they are sprayed directly on the foliage for an even faster action.

Another possibility is powder fertilizers, which will be diluted in the water or granulated fertilizers. These last ones exist in 'whiplash' version or in slow release in the form of balls or dice which are added to the substrate and which allow to be quiet during several months.

10 tips for creating a vegetable garden on the balcony

Creating a vegetable garden on your balcony is not always as easy as you might think in magazines, especially when you are a beginner. Here are 10 tips that will make it easier for you!

1- Take into account the exposure of the balcony

Before you start, take a good look at your balcony, what is its exposure? Is it in full sun? If so, you're in luck because you can grow most vegetable plants there. If it is in the shade and exposed to the North, forget tomatoes, eggplants and melons!

2- Be well informed

If you are a real novice, read up on gardening in books or on websites dedicated to gardening, this will help you avoid making many mistakes later on.

3- Get the right equipment

To grow vegetable plants on a balcony, you need containers that are large enough for the roots to develop properly. Forget about small individual pots and invest in large, deep containers. There are also growing tables specially adapted to growing on a balcony.

4- Drainage

Drainage is an important concept! Containers should be pierced at the bottom and a layer of gravel or clay balls should be left in place to allow water to drain away to avoid root rot and the failures that go with it.

5- Choose the best potting soil possible

Choose a very good commercial potting soil. Avoid the cheap ones, and prefer a brand name potting soil that already contains a slow release fertilizer, because the nutrients will be in less quantity and more quickly depleted than in open ground. This parameter is very important to ensure a good success. Add a fertilizer base for greedy plants.

6-Use the verticality

Sometimes there is not enough space on a balcony. Get around this problem by placing large containers at the foot of the side walls. You can use them to grow string beans, peas, cucumbers or even melons on a solidly attached trellis. At the foot of these climbers, in the foreground of the planter, strawberries, aromatic herbs, lettuce and radishes will find their place.

7- Grow early seedlings under cover

Invest in a mini heating greenhouse to sow tomatoes, peppers, melons, zucchini and eggplant in the warmth of March. This method allows you to obtain varieties that cannot be found in pots in the shops, to grow old or forgotten varieties and also to save money.

8- Wait for the right moment

Don't rush! Even if some vegetable plants are on sale very early in the garden centers, wait until all risk of frost is gone to install the most frigid ones.

8- Watering

Watering must be even more regular than for plants in the ground because evaporation in pots is much more important. Be very careful and never let the mixture dry out completely between two waterings.

9- Mulch

To reduce watering operations by limiting evaporation, mulch the base of your plants with a layer of at least 15 cm of straw, grass clippings, RCW, or flax chaff.

10- Fertilize

Fertilize regularly during the season with a complete organic fertilizer in granules.

10 tips for successful planters

With the arrival of summer, the desire to plant flowers on your balcony becomes more pressing. Here are a few tips to make your window boxes a success and turn your balcony into a cascade of flowers.

1- Choose the right plants

Given the vast choice offered in garden centers, it is very important to know how to select plants that will be happy on your balcony. Choose plants that are adapted to the exposure of your balcony, for example petunias if it is sunny and fuchsias if it is shady.

2- Choose plants that meet the same needs

If you want to create a composition in a planter, the plants installed must have the same cultural needs. Never plant a water-hungry species with plants that enjoy dry soil! Failure is guaranteed.

3- Choose the right planter

Choose a deep planter that is wide enough for the roots to develop well. Vary the pleasures or adapt your planters to the style of your balcony: flashy, wooden, metal, there is something for every taste and every setting.

4- Drain

The bottom of the planter should be perforated so that water does not stagnate at the roots. Remember to add a layer of at least 1 cm of clay balls or gravel at the bottom of the container, always with the same purpose of drainage.

5- Choose the right soil

In containers, the choice of substrate is of crucial importance to ensure good success. Always choose a brand name, quality potting soil rather than cheap potting soil.

6- Respect the planting distances

In order for plants to grow without competing with each other, and therefore remain healthy, it is imperative to respect a certain distance between them. 3 cups are enough to fill a 30 cm long planter. If at the beginning, your planter seems bare, don't panic! The plants will soon fill it.

7- Wait before planting

In the spring, wait until all risk of frost has been eliminated before planting cold-weather plants in your window boxes. For certain plants such as begonias, petunias or New Guinea impatiens, be patient.

8- Composing with balance

To achieve a beautiful composition, remember to vary the shapes and volumes. Compact plants in the center, more vertical plants in the background and drooping plants in the foreground.

9- Think about foliage

Plants with decorative foliage are very useful to provide a 'link' or create a contrast in the compositions. Coleus, variegated ivy, mint, plectranthus, heuchers will be introduced in small touches in the planters.

10- Harmonize colors

Beware of errors of taste! To avoid a "carnival" effect on your balcony, mix similar colors to create an elegant monochrome or play with contrasts with opposite colors but only in two shades so that it remains pleasant to look at. Finally, use and abuse the white that blends with all colors and softens the compositions. 

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