These plants are large shrubs or small to moderate-sized trees, reaching 5–15 m (16–49 ft) tall, with spiny shoots and alternately arranged evergreen leaves with an entire margin. The flowers are solitary or in small corymbs, each flower 2–4 cm (0.79–1.57 in) diameter, with five (rarely four) white petals and numerous stamens; they are often very strongly scented, due to the presence of essential oil glands.
Citrus Pyriformis Care
Citrus Limon × Citrus Medica



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How to Care for the Plant
Water
Water the “Ponderosa” thoroughly to evenly moisten the soil, but not enough to allow it to be soggy or wet. Allow the surface soil to dry out slightly before watering again during the growing season. Container citrus may need to be watered once or twice daily during the hottest months. Water when the top 1 inch of soil is dry during fall and winter.
Pruning
Prune your indoor “Ponderosa” lemon tree in early spring before new growth emerges. Use clean, sharp shears to remove any branches that cross each other or rub together to open up the canopy and create a strong scaffold. This allows for good air circulation. Cut the branches all the way back to the originating limbs. Snip canopy tips back by several inches to control overall growth. Prune off any vegetation that appears on the tree’s trunk below its lowest branches at any time of the year. Trim out dead or damaged branches whenever you see them and snip off long or unattractive tips to shape the plant throughout the year.
Fertilizer
Feed the indoor “Ponderosa” a liquid fertilizer for indoor citrus twice monthly while it is actively growing. Cut back to once each month during fall and winter. Follow the packaging instructions for proper dilutions.
Sunlight
Set the plant in a warm, shady spot during the day and bring it in at night for several days. Place it in direct sun during the morning hours and move it to shade during afternoons and leave it out overnight for the next few days. Allow the plant to remain in full sun and remain outdoors until fall.
Soil
Clay is a good choice for citrus as it helps good drainage and allows for root aeration. Create a potting mix of equal parts peat moss or organic compost, perlite and sterile potting soil.
Temperature
Bring the “Ponderosa” indoors for the winter when sustained temperatures drop below 50 degrees Fahrenheit. Keep it in a brightly lit room with daytime temperatures around 65 F and overnight temperatures about 55 to 60 F. Place the plant near a sunny window keep it out of drafts.
Container
Transfer the “Ponderosa” lemon tree to a pot one size larger than the growing container
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