"kept on a sunny windowsill" is the participial phrase in the sentence. It describes where the violet was placed.
kept on a sunny windowsill
The simple past and past participle are both bloomed.
My flowers finally bloomed today.
The past perfect tense is had bloomed.
The flowers will bloom in April
The simple subject in the sentence is "buttercups." It is the main noun that the rest of the sentence describes or provides information about.
The word bloomed has one syllable.
Spring into action! Spring forward, Fall backward.
The xanthous flowers bloomed brightly in the garden, adding a vibrant touch of yellow to the landscape.
The narcissus flowers in my garden bloomed beautifully this spring.
The laburnums in the garden bloomed with vibrant yellow flowers, creating a beautiful display for visitors to admire.