flowers

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Across
  1. 1. The flowers are generally white and yellow
  2. 6. The common - is harvested for its edible oily seeds
  3. 8. Flowers unfurl into full bloom in the early morning.
Down
  1. 2. The species habitually colonises lawns, and is difficult to eradicate by mowing, hence the term 'lawn - "
  2. 3. Their flowers are usually large, showy, and brightly coloured, generally red, orange, pink, yellow, or white
  3. 4. The usual flower colour is a shade of purple
  4. 5. This flower is known for producing alkaloids for opiates
  5. 7. These flowers are given on valentines day