Aushadhi Sangraha Kaala

Weather plays an important role in dravya collection.Because according to weather changes avaibility of active principles in medical plants. Charaka has clearly mentioned that medicinal parts of a plant should be collected in the appropriate season because in that particular season,the percentage of active ingredient is more at that time.More active ingredients in plants gives best results in cure of disease.In case all parts of a medicinal pant are required, Caraka has excluded the rainy season (see following table).
Similarly Sushruta and Bhavprakash have indicated appropriate time for collection of medicinal parts of a plant.

COLLECTION OF PARTS OF MEDICINAL PLANTS AS PER AYURVEDIC TEXTS

Different parts of a plantSeasons as per sushrutaSeasons as per carakaSeasons as per Bhavaprakash
Leaves-Do--Do-May-July
RootsMay-JulyJanuary-March and May-JulyJanuary-March
BarkSeptember-NovemberSeptember-November
TubersSeptember-NovemberNovember-January
LatexNovember-JanuarySeptember-November
Heart woodMarch-MayNovember-January
FlowersAccording to the flowering season of individual plant.March- May
FruitsMay- JulyAs per fruiting season of each plant.
Drug as a wholeSeptember-November

 

In another Ayurvedic text, fallowing descrition is available acoording to medice collection time-

Plant partTime of collection
Roots (annual plants)Before flowering period
Roots(biennial and perennial plants)Late in fall or early in spring
BarkDormant seasons
leavesFlowering period
FlowersOn opening

 

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