Here is a list of flower plants commonly grown in a garden, including easy-to- grow options and popular varieties from different sources:

• Lilac (Syringa vulgaris), scented flowers in pink, purple, or white, grows up to 7m.
• Grape Hyacinth (Muscari armeniacum), small blue spring flowers, 15cm tall.
• Hellebores (Christmas rose), evergreen perennials flowering late winter to early spring.
• Chilean Glory Flower (Eccremocarpus scaber), an evergreen climber with orange-red flowers.
• Mexican Orange Blossom (Choisya ternata), scented flowers in May.
• Love-in-a-mist (Nigella damascena), hardy annual with light blue flowers.
• Marigold (Calendula officinalis), orange annual blooms June to October.
• Catmint (Nepeta spp.), sun-loving with blue/purple flowers attracting pollinators.
• Lobelia, long-flowering bedding plant for partial shade.
• Viola, good for pots and window boxes, long flowering period.
• Cyclamen, winter-flowering hardy perennials.
• Camellia, evergreen with flowers from February to April.

For beginner-friendly and easy flowers:

• Sunflowers
• Coneflowers
• Zinnias
• Dianthus
• Impatiens
• Cosmos

These plants vary in height and growing requirements but are suitable for various garden styles, seasons, and conditions, providing color and biodiversity to a garden.

If the focus is on the "Grow a Garden" game context, flower plants include:

• Uncommon: Artichoke, Orange Tulip, Rose, Manuka Flower, Lavender, etc.
• Rare: Daffodil, Foxglove, Bee Balm, Dandelion, etc.
• Legendary and higher rarity flowers such as Lilac, Calla Lily, Candy Sunflower, Purple Dahlia, Honeysuckle, and more.
  These have different rarities and point values for game events.

Would a simple list of flower plants for a physical garden or additional gardening advice be helpful?