Yes, gaura in pots works well if you give the plant a deep pot and pick a compact cultivar. Use a pot at least 12 inches (30 cm) wide and 14 inches (36 cm) deep. Belleza and Karalee series stay tight and bloom hard. Skip tall types like Dauphine that need open ground.
I grew Belleza Dark Pink in a 14 inch (36 cm) terracotta pot through one full summer. The plant got weekly water and a small dose of slow release feed in May. It bloomed from June to October with dozens of pink wands. The pot sat on my patio in full sun the whole time.
Gaura containers must hold enough depth for the taproot to grow down. The plant has a long, woody root that pushes straight down. Wide, low pots will kill your plant within one season. Aim for pots that are taller than they are wide. This is the key to long term success in any container setup.
Garden Design lists gaura as a strong pick for pots in their plant guide pages. Wisconsin Extension names the Belleza and Karalee series as compact picks for tight spots. Both series stay under 18 inches (45 cm) tall in pots. They bloom from late spring through fall in most zones.
Container gaura needs more water than ground plants but less than most patio flowers. Check the soil with your finger every three days in summer. Water when the top 2 inches (5 cm) feel dry to your touch. The pot should drain free from the bottom hole within seconds of your pour.
Pot Size and Type
- Minimum size: At least 12 by 14 inches (30 by 36 cm) with extra depth for the long taproot.
- Material: Terracotta drains best but dries out fast; glazed ceramic holds moisture for hot zones.
- Drainage: Must have one or more holes at least half inch (1.3 cm) wide in the base of the pot.
Soil Mix Recipe
- Base mix: Use two parts quality potting soil that drains free and does not stay wet for days.
- Grit add: Mix in one part perlite, pumice, or coarse sand for sharp drainage at depth.
- pH check: Aim for slightly acidic at 6.0 to 6.5 for best root health and bloom strength.
Watering Schedule
- Spring: Water once a week as growth begins and the days warm up in your zone.
- Summer: Water two times a week during hot spells over 85°F (29°C) for steady bloom.
- Fall: Cut back to once every 10 days as temps drop and plants slow their growth.
Compact Cultivars
- Belleza series: Stays at 12 to 18 inches (30 to 45 cm) with strong pink or white blooms.
- Karalee series: Grows 18 to 24 inches (45 to 60 cm) with neat, bushy growth habit.
- Stratosphere: Reaches 24 inches (60 cm) with airy wands that work in mid size pots.
When you start growing gaura in pots, give the plant a feed in early summer only. Use a slow release pellet for shrubs or a half strength liquid feed. Too much food makes the stems weak and floppy. The plant pushes more leaves than flowers if you overfeed. Once a year is plenty.
Overwintering pots takes a bit of thought in cold zones. Move your pots into shelter when nighttime lows drop below 25°F (-4°C) in your area. An unheated garage or shed works well for most growers. Water just once a month through winter to keep the root alive but not wet.
The best gaura for containers are the compact series bred for pots. Belleza Dark Pink is my top pick for tight color and a long bloom run. Karalee White gives soft, airy flowers that look great with herbs and grasses. Both have proven track records in my own pot trials over five seasons.
Repot your gaura every two to three years to refresh the soil and check the root ball. Lift the plant in early spring before new growth begins. Trim any dark or soft roots with clean shears. Add fresh potting mix and replant at the same depth as before. This keeps your plant strong for years.
Watch for signs your pot is too small or too wet. Yellow leaves and slow growth point to drainage trouble. A pot bound plant shows roots circling the inside of the pot. Move up to a pot 2 inches (5 cm) larger when this happens. Your gaura will thank you with fresh wands of bloom by midsummer.
Read the full article: Gaura Plant Growing Guide
