Dear Maithilee Kesralikar thank you for your interesting technical question. I suggest to dilute your plant extract with some methanol or ethanol and then filter it to remove an insoluble particles.
For some closely related questions please also have a look at the following RG threads:
How to dissolve methanolic extract of plant (dissolve only in pure DMSO) in DMSO for antiinflammatory and antioxidant assays?