21 flowers are to offered to Lord Ganesha. We can try to purchase as many as possible and available.
I have given the names of some of the flowers that are easily available. Tamil names are given in brackets.
a) Jasmine ( Malli )
b) Oleander (Arali )
c) Night jasmine (parijatham )
d) Spanish Jasmine ( jathi malli )
e) Chrysanthemum (Sevanthi )
f) Arabian Jasmine ( Mullai )
g) Champak ( shenbagam )
h) Screw pine ( thazham poo )
i ) Calotropis( Erukkam poo )
j) Datura ( oomathai poo )
k) Spanish cherry flower ( maghizam )
l) Cassia fistula ( Konrai )
m) Orchid ( mandharai )
n) Thumbe ( Thumbai )
If there is any discrepancy in English names please let me know