Updated: June 19, 2023

Hot Lips (Salvia microphylla ‘Hot Lips’) is a popular and vibrant plant that adds a burst of color to any garden or landscape. Known for its striking red and white flowers, this perennial plant is a favorite among gardeners. When it comes to planting Hot Lips, one common question that arises is how deep should it be planted? In this article, we will explore the optimal planting depth for Hot Lips and provide some helpful tips for ensuring its successful growth.

Understanding Hot Lips Plant

Before delving into the specifics of planting depth, it’s essential to understand the characteristics of the Hot Lips plant. The Hot Lips Salvia is a low-growing shrub that typically reaches a height of about 2 to 3 feet and spreads around 3 feet wide. It thrives in full sun but can tolerate partial shade, making it a versatile option for various garden settings.

Hot Lips is known for its unique flowers, which change color depending on environmental conditions. During cooler weather or in shaded areas, the flowers generally appear in solid white. However, as the temperature rises or when exposed to direct sunlight, the flowers transition to a vibrant red and white bi-color pattern.

Optimal Planting Depth for Hot Lips

When it comes to planting Hot Lips, the general rule of thumb is to ensure that the root ball is level with or slightly above the soil surface. This planting depth allows for proper drainage and prevents issues such as root rot. However, it’s important to note that different gardening experts may have slight variations in their recommendations.

A common recommendation is to dig a hole that is twice as wide as the root ball and slightly shallower than the height of the root ball. This method provides ample space for the roots to grow outward while ensuring they are not buried too deeply. Gently loosen the roots before placing the plant in the hole and backfill with soil, ensuring it is firmly packed around the root ball. Finally, water the plant thoroughly to help settle the soil.

Factors to Consider

While the general planting depth guideline is helpful, there are a few factors to consider that may affect the actual depth at which you plant your Hot Lips:

Soil Type and Drainage

One crucial factor to consider is the soil type and drainage in your garden. Hot Lips plants prefer well-draining soil that is rich in organic matter. If your soil tends to be heavy or clay-like, it’s essential to amend it with compost or other organic materials to improve drainage. In areas with poor drainage, planting the Hot Lips slightly higher can prevent waterlogging and root rot.

Climate and Sun Exposure

The climate and sun exposure in your region can also influence the planting depth for Hot Lips. If you live in a hot and arid climate, planting the Hot Lips slightly deeper can help protect the roots from excessive heat. On the other hand, if you reside in a cooler region or experience harsh winters, planting the Hot Lips a bit shallower can provide some insulation for the roots during freezing temperatures.

Additionally, it’s important to ensure that Hot Lips plants receive adequate sunlight. If you are planting them in a shaded area, they may not grow as vigorously or produce their characteristic bi-color flowers. In such cases, planting them slightly higher can help capture more sunlight.

Mulching

Mulching around Hot Lips plants is highly beneficial as it helps retain moisture, suppresses weed growth, and regulates soil temperature. However, when mulching, be careful not to bury the crown of the plant too deeply. The crown should remain above the mulch layer to prevent rotting.

Tips for Successful Growth

Apart from planting depth, here are a few additional tips to ensure successful growth of Hot Lips plants:

  1. Watering: While Hot Lips plants are relatively drought-tolerant, regular watering is essential during their establishment period. Water deeply but infrequently to encourage deep root growth and avoid over-watering.

  2. Fertilization: Apply a balanced slow-release fertilizer in early spring to promote healthy growth and abundant flowering. Follow the manufacturer’s instructions for proper application rates.

  3. Pruning: Hot Lips can benefit from occasional pruning to maintain its shape and encourage bushier growth. Prune back the plant by one-third in early spring or after the first flush of flowers to stimulate new growth.

  4. Winter Protection: In regions with freezing temperatures, consider applying a layer of mulch around the base of the plant in late fall to provide some insulation during winter.

  5. Deadheading: Remove spent flowers regularly to encourage continuous blooming and prevent the plant from wasting energy on seed production.

By following these tips and ensuring the appropriate planting depth, you can enjoy a vibrant display of Hot Lips flowers in your garden throughout the growing season.

Conclusion

The optimal planting depth for Hot Lips plants is to ensure that the root ball is level with or slightly above the soil surface. However, it’s important to consider factors such as soil type, climate, and sun exposure when determining the exact planting depth. By providing well-draining soil, adequate sunlight, and following proper watering and care practices, you can enjoy a thriving Hot Lips plant that adds beauty to your garden year after year.