Lacy Phacelia / Bee Plant (*Phacelia tanacetifolia*)
Why It Must Be Present in Every Apiary
Lacy Phacelia (*Phacelia tanacetifolia*), widely known as the "Bee Plant," stands as one of the most productive annual species in the apicultural world regarding nectar secretion potential. Acting like a magnet for forager bees during its flowering period, phacelia drives colony brood development to its absolute peak from late spring through mid-summer. When sown in staggered intervals, it establishes an uninterrupted food pasture around the apiary during critical dearth periods. Furthermore, by keeping the soil moist and enriching it with nitrogen, it serves as an exceptional green manure crop.
Nectar and Pollen Yield Potential
Scoring a 10 out of 10 in nectar yield and a 9 out of 10 in pollen production, phacelia has the capacity to produce between 30 and 50 kg of pure honey per decare (1,000 m²). Its flowers secrete nectar continuously almost throughout the entire day. Meanwhile, its violet-blue pollen pellets satisfy bees' protein requirements to an extraordinary degree.
Honey Quality and Organoleptical Properties
It produces a top-quality honey with light amber and clear-yellow tones, a crystal-clear appearance, and a soft, mildly fruity-floral taste on the palate. Because it lacks a heavy aroma, it is exceptionally pleasant to consume and boasts high market value and consumer demand as a monofloral honey.
Secretion Conditions (Temperature and Humidity)
Nectar secretion peaks during moderate air temperatures ranging between 18°C and 28°C under conditions of high relative humidity. Remaining open to bee visitation from early morning until dusk, the flowers multiply their nectar output in slightly humid weather.
Crystallization Rate and Reason
Phacelia honey crystallizes at a moderate rate due to its balanced glucose and fructose composition. When granulated, it acquires a very fine-grained, creamy, and buttery texture while retaining its quality.
Chemical Reason: Glucose / Fructose Ratio
The ratio of fructose to glucose in its honey is at an ideal level. This chemical balance ensures that the honey maintains its clarity in liquid form for extended periods and allows bees to easily digest it as winter stores inside the hive.
Can Pure Honey Be Obtained?
When phacelia is sown in blocks of 5-10 decares or more around the apiary, harvesting extremely pure monofloral phacelia honey is remarkably easy. Bees bypass all other plants and focus directly on the phacelia field.
Laboratory Honey Analysis and Distinctive Results
The detection of characteristic *Phacelia tanacetifolia* pollen grains in melissopalynological analyses and the presence of violet-blue pollen traces serve as the most prominent laboratory proofs of authenticity.
Monofloral Pollen Ratio (Melissopalynology)
When a *Phacelia* pollen presence of 45% or higher is identified in laboratory analyses, the honey is officially labeled and commercialized as monofloral phacelia honey.
Medicinal Value and Apitherapy
Phacelia honey and pollen regulate the digestive system, balance stomach acidity, and provide a rapid natural energy boost to the body thanks to their high enzyme activity and rich flavonoid profile.
Bee Health, Immunity, and Toxic Risk Status
Its violet pollen, rich in essential amino acids, develops young worker bees' hypopharyngeal glands to an exceptional level. This enhances brood-feeding capacity and drives colony immunity to its peak. It poses zero toxic risks.
Botanical Perspective (Life Cycle: Annual/Perennial)
An annual, upright-growing, branching herbaceous plant belonging to the Boraginaceae family, featuring a taproot system and capable of reaching heights between 60 and 100 cm.
Flower Morphology and Bee Accessibility
Flowers cluster at stem tips in helicoid cymes (scorpionic curls). Because the calyx structure of the bell-shaped violet-blue flowers is open, honeybees access nectar and pollen with zero effort.
Flowering Calendar and Development Process
Depending on the sowing time, it begins flowering 50-60 days after emergence and remains in bloom for 4-6 weeks (Mid-May - Early August, Circular Index: 18-28).
| Development / Flowering Stage | Timeline and Characteristic Features |
|---|---|
| Germination & Vegetative Growth | March – April (Seed emergence and rapid stem branching) |
| Early Bloom & Nectar Initiation | Mid-May (Opening of the first purple flowers and intense bee attraction) |
| Full Bloom (Peak Nectar Flow) | Early June – Early July (Opening of all scorpionic curl flowers, record nectar flow) |
| Seed Maturation & Drying | Late July – August (Shedding of flowers, maturation of seed capsules) |
Climate Hardiness and Soil Requirements
- Temperature & Moisture Tolerance: Prefers temperate climates. Tolerant to light frosts during the young seedling stage (down to -5°C); however, it requires irrigation during extreme summer heat and drought.
- Soil Adaptation: Highly undemanding regarding soil requirements. It thrives effortlessly in loamy, clayey, calcareous, and even poor soils; however, it prefers well-drained soils where water does not accumulate.
Propagation Principles via Seeds
Since phacelia is an annual plant, its propagation is carried out exclusively through seeds. Sowing by seed is exceptionally straightforward and boasts a very high germination rate.
When to Collect Seeds?
Seeds are harvested at the end of summer (in August) by mowing or manually collecting and threshing once the plant stems turn yellow and seed capsules brown.
Sowing and Germination Principles
After cultivating and leveling the soil in spring, seeds are broadcast or drilled at a depth of 1-2 cm at a rate of 1.5 - 2 kg per decare. Because seeds are small, they must not be buried too deep.
Spacing Guidelines
Since sowing is performed directly in the field, seedling pricking is not applied. Leaving 20-30 cm between rows during drill planting enhances plant branching and flower count.
Invasiveness and Meadow Establishing Potential
By applying staggered sowing (sowings in March, April, and May at 15-day intervals), the flowering period can be extended up to 3 months. This creates an extraordinary artificial pasture around the apiary.
Pruning and Extending Bloom (Rejuvenation)
Being an annual plant, pruning is not performed. However, light irrigation and fertilization mid-flowering can prolong the flowering duration and the continuity of nectar secretion.
Future Beekeeping Investment
Sowing phacelia in vacant lands around your apiary is the most cost-effective and high-yielding investment to double your colony population in the shortest time and guarantee honey yields.