How to Care for Summer Flowers on a Balcony? A Guide to a Flood of Blooms
Summer is a real stress test for balcony flowers. On one hand, they get ideal conditions for lush growth and blooming; on the other, they're threatened by scorching sun and rapid drying out. Want a balcony that looks like it's straight out of a catalog all summer long?
Our florists at Květiny Expres have put together a manual that even a beginner can follow. The secret to success actually starts with choosing the right plants.
A South-Facing Balcony (A Sun Furnace)
Here the sun shines most of the day. You need "fighters" that can handle direct heat and the occasional dry spell.
-
Ideal choice: Petunias, Surfinia petunias, gazanias, sunflowers, geraniums (Pelargonium), lavender.
-
Tip: Choose light-colored containers — dark ones overheat in the sun and cook the roots.
An East- or West-Facing Balcony (The Golden Middle)
East offers gentler morning sun, west the evening sun. It's the ideal compromise for most plants.
-
Ideal choice: Verbena, lobelia, bacopa, Million Bells.
A North-Facing Balcony (Shade and Cool)
Almost no sun reaches here, but that doesn't mean it has to look dull.
-
Ideal choice: Fuchsia (the queens of shade), begonias, impatiens, ornamental grasses, or ivy.
A tip from florist Jana: "Is your balcony in a windy spot? Watch out with trailing petunias — wind easily breaks their long vines. For open, windy balconies, choose low, compact plants instead, like dwarf bush geraniums or herbs with sturdier stems."
Bring Your Balcony to Life With Our Plants
Looking for something that lasts and looks stunning? We've picked out hardy options for you:
Hydrangea in a pot
499 Kč
XL Hydrangea Mix
890 Kč
Solanum jasminoides 'Album'
490 Kč
Hanging Fuchsia
450 Kč2. Watering: The Alchemy of Summer Days
In summer, water is a matter of life and death for flowers. High temperatures cause rapid evaporation, which stresses the plants.
The golden rules of watering:
When to water: Always morning or evening. Never water at midday in direct sun — water droplets act like magnifying glasses and scorch the leaves, and the plant would also suffer a heat shock.
How often: On tropical-hot days, smaller planters may need water even twice a day.
The finger test: Don't water automatically. Poke a finger 2–3 cm into the substrate. Is it dry? Water it. Is it moist? Wait. Overwatering is just as dangerous as drought (it causes root rot).
Tricks against drying out:
Self-watering planters: The best investment for forgetful gardeners.
Hydrogel: Mix hydrogel crystals into the soil — they absorb water and release it gradually.
Mulching: A layer of expanded clay or bark on the soil's surface slows down evaporation.
3. Nutrition: A Hungry Flower Doesn't Bloom
Summer flowers (so-called "annuals") have to grow and produce a flood of blooms within just a few months. That takes an enormous amount of energy.
-
Fertilizing schedule: From June to August, feed once a week with a liquid fertilizer mixed into the water.
-
What to look for in the ingredients: Phosphorus and potassium are key for blooming (e.g. "Bloom" fertilizers or special geranium fertilizers). Nitrogen only promotes leaf growth.
-
The natural route: If you're growing herbs or tomatoes alongside your flowers, use natural fertilizers instead (nettle infusion, worm-cast tea).
4. First Aid: Pests and Diseases
Unfortunately, heat and humidity are also loved by pests. Check your plants regularly (including the undersides of leaves).
-
Aphids: You'll recognize them by sticky leaves and stunted growth.
-
Solution: Soapy water, or a spray with added oil and baking soda, is often enough.
-
-
Spider mites: They create fine webbing, and leaves turn yellow. They love dry air.
-
Solution: Increase humidity (misting) and use a rapeseed-oil-based spray.
-
-
Mold and fungal issues: These arise from poor ventilation and overwatering. Remove affected parts and cut back on watering.
Conclusion: Create Your Own Oasis
Caring for balcony flowers might sound like a science, but it comes down to one basic rule: the right plant in the right spot, and regular water. Your reward will be a private oasis of calm in the middle of a sweltering city.
We wish you a beautiful summer full of blooms! The KvětinyExpres.cz team
