Mona Lavender (Plectranthus Mona Lavender) is a popular ornamental plant cherished for its striking appearance. This hybrid features vibrant purple flowers on tall spikes, complementing its dark green foliage with a unique purple underside. Its compact growth and straightforward care make it an excellent choice for container growing, adding color to indoor spaces or shaded outdoor areas. This guide will help you cultivate a thriving Mona Lavender in a pot.
Potting Essentials for Mona Lavender
Successfully growing Mona Lavender in containers begins with selecting the right pot and potting mix. Pots must have drainage holes to prevent root issues. Materials like terracotta offer breathability and help prevent overwatering, while plastic or glazed ceramic retain moisture more effectively, potentially reducing watering frequency.
For a young plant, start with a 6 to 8-inch diameter pot. Mona Lavender prefers being slightly root-bound, but as it matures, repot it into an 8 to 12-inch pot every one to two years. The ideal potting mix should be well-draining yet rich in organic matter. A high-quality general-purpose mix works well, especially when amended with perlite or coarse sand to enhance drainage and aeration.
Ongoing Care for Potted Mona Lavender
Providing the right environmental conditions and consistent maintenance helps potted Mona Lavender flourish. Optimal light involves bright, indirect light, with some morning sun exposure being beneficial. Indoors, place the plant near an east or south-facing window; outdoors, partial shade protects it from intense afternoon sun that can scorch leaves. Insufficient light may lead to leggy growth and reduced flowering.
Mona Lavender requires consistent moisture. Water thoroughly when the top inch or two of soil feels dry, ensuring water drains from the bottom and the pot does not sit in standing water, which can cause root rot. During the active growing season (spring through summer), fertilize every two to four weeks using a balanced, water-soluble fertilizer diluted to half strength. Reduce or cease fertilization during fall and winter, and dormant periods.
This plant thrives in average room temperatures, ideally 60-80°F (15-27°C), and is sensitive to cold, so protect it from temperatures below 50°F (10°C). Mona Lavender prefers moderate humidity, around 40-50%. In dry indoor environments, especially during winter, increase humidity using a pebble tray or a cool-mist humidifier. Pruning maintains a bushy shape and encourages more blooms. Pinch back stem tips to promote branching and deadhead spent flowers for continuous blooming.
Troubleshooting Potted Mona Lavender Problems
Even with attentive care, potted Mona Lavender may occasionally exhibit signs of distress. Wilting or drooping leaves often indicate underwatering (dry soil) or overwatering (soggy soil leading to root rot); adjust your watering schedule and ensure proper drainage.
Yellowing leaves can stem from overwatering, nutrient deficiencies, or natural aging. A lack of blooms points to insufficient light, improper fertilization (too much nitrogen promotes foliage over flowers), or a need for pruning. Ensure the plant receives bright, indirect light and a balanced fertilizer during its growing season to encourage flowering.
Common houseplant pests like aphids, spider mites, and whiteflies can affect Mona Lavender. Inspect your plant regularly for these pests, particularly on the undersides of leaves. For minor infestations, wipe leaves with a damp cloth or apply insecticidal soap. Diseases like leaf spot, stem rot, and root rot are linked to excessive humidity or poor drainage; ensure good air circulation and appropriate watering.