Parish's phacelia (Phacelia parishii)

Also known as: None

Desert bluebells, or Phacelia campanularia, are notable for their clusters of bell-shaped violet or blue flowers. This annual herb thrives in arid desert environments, thanks to its deep taproot that efficiently navigates sandy soils. Blooming primarily in spring, its coiled flower clusters are highly attractive to pollinators. The plant also features fern-like leaves and hairy stems, which contribute to its ability to withstand harsh, sunny conditions.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Parish's phacelia

Lifespan

Annual

Plant Height

5-15 cm

Spread

Not applicable

Leaf Color

Green

Flower Size

0.5-1 cm

Flower Color

Lavender-blue

Images of Parish's phacelia

Quickly Identify Parish's phacelia

To identify Phacelia parishii, look for its small lavender-blue flowers arranged in coiled clusters, and its finely divided, fern-like leaves. The plant is usually low-growing and found in desert regions.

Scientific Classification of Parish's phacelia

Phylum

Vascular plants

Class

Dicotyledons

Order

Boraginales

Family

Waterleaf

Genus

Heliotrope

Species

Parish's phacelia

Planting and Growing of Parish's phacelia

Care Difficulty

Hard

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Parish's phacelia?

Phacelia parishii requires watering until the soil is evenly moist but not soggy. This desert-loving plant thrives with a delicate balance, where the roots need access to moisture without becoming waterlogged. It's best to water once the top inch of the soil feels dry to the touch, ensuring the plant is adequately hydrated but not sitting in excess water.

What are the symptoms of an underwatered Parish's phacelia? ›

What should I do if my Parish's phacelia is not getting enough water? ›

What are the symptoms of an overwatered Parish's phacelia? ›

How to save an overwatered Parish's phacelia? ›

What Are the Sunlight Requirements for Parish's phacelia?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Phacelia parishii ideally enjoys full sun to partial sun exposure, ensuring it gets 6 to 8 hours of sunlight. Proper light supports robust growth and a vibrant display of flowers, vital for its health.

What is the preferred lighting condition for Phacelia parishii? ›

How can I achieve the ideal light conditions for Phacelia parishii? ›

What are the benefits of optimal lighting for Phacelia parishii? ›

What Is the Ideal Temperature Range for Parish's phacelia?

Ideal Temperature: 60 ~ 75℉

Phacelia parishii thrives best within an ideal temperature range of 60°F to 75°F. At these temperatures, the metabolic processes of the plant are most efficient, promoting healthy growth and optimal blooming. Maintaining these conditions ensures that the plant experiences minimal stress and achieves its full potential in production and development.

What Soil is Best for Parish's phacelia?

Soil type: Sandy soil, Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Phacelia parishii thrives in well-drained soils, which helps prevent root rot by ensuring excess water doesn't accumulate. This type of soil facilitates better aeration and nutrient uptake, essential for the plant's root health and overall growth. Although Phacelia parishii can grow in poor soils, providing a soil rich in organic matter supports its growth by offering essential nutrients. The presence of organic material helps retain moisture and fosters beneficial microbial activity in the soil. This plant prefers soils that are slightly on the alkaline side of the spectrum, closer to a pH of 7.5. Alkaline conditions enhance nutrient availability for this plant, supporting its vibrant foliage and flowering capabilities.

How to Fertilize Parish's phacelia?

Fertilizer type: Balanced

For Phacelia parishii, a balanced supply of nutrients is essential. Use approximately 1 tablespoon of balanced liquid fertilizer per gallon of water when applying, ensuring not to exceed plant needs and avoid nutrient run-off.

How to Prune Parish's phacelia?

Pruning Time: Spring, Summer

Start pruning Phacelia parishii by removing any dead or damaged stems. Use sharp, sterilized scissors or pruning shears to make clean cuts. Focus on shaping the plant by cutting back any unruly branches. Aim to create a balanced look, which will aid in even sunlight exposure and airflow. Prune in early spring and midsummer for best results. This timing helps the plant to recuperate quickly and prepare for blooming. Use angled cuts when pruning to allow for better water runoff and prevent rot. More About Pruning Techniques→

How to Propagate Parish's phacelia plant?

Propagate Time: Early spring,Late spring

Fill seed trays with sterile potting mix and moisten it thoroughly. Ensure the mix is evenly moistened without being waterlogged, as this will encourage better seed germination.

Scatter the seeds evenly across the surface of the potting mix, and gently press them into the soil. Do not cover the seeds too deeply; a light layer of potting mix will suffice.

Place the seed trays in a warm, well-lit area. Maintain a consistent temperature and moisture level for optimal germination. Consider using a propagation mat if necessary.

More About Propagating Techniques→

How to Repot Parish's phacelia plant?

Repotting frequency: Every 2-3 years

Phacelia parishii should be repotted when you notice roots are circling the pot, dwindling growth rate, or poor drainage. Spring and autumn are the best seasons as moderate temperatures favor root establishment without extreme stress.

Select a pot that's 1-2 inches larger in diameter than the current one to accommodate new root growth. Ensure it has drainage holes to prevent waterlogged conditions, which help promote a healthy root system by avoiding rot.

Opt for a well-draining sandy soil mix that resembles the plant's natural desert habitat. This kind of soil ensures that water doesn't overly saturate the plant's roots, reducing the chance of root rot and encouraging healthy plant growth.