Planting the bulbs in groupings of 7-9 bulbs per planting hole will help create a full bouquet appearance. These mid-sized alliums like Star of Persia Allium and Purple Sensation Allium can easily fit into most planting beds. To estimate the number of lumens your space will need, just multiply the square footage of your room by the number of foot-candles required for the space. Multiply the length times the width of the room to get the room square footage. Plant one bulb per square foot. These may be planted at any time during the growing season. Blooming in late spring to early summer, this Giant Allium enjoys long-lasting blooms and remains ornamental in the garden well into summer. We have organized the 12 most popular allium bulbs by height, flower size and bloom time. For example: If your garden is 10 square feet and you want to fill it with tulips, you will multiply: 10 (sq feet) x 5 (# of bulbs… Many allium varieties only grow 2-3′ tall. Determine Room Square Footage. But the allium group has much more to offer. Result may defer according to spacing layout of led lights and position from wall. A foot-candle is how bright a light is one-foot away from its source. wide (12-15 cm) globe-shaped cluster. This makes it easy to see at a glance which types you have and which ones you still need to get! For example, for a bathroom that is 64 square feet with a foot-candles range of 70-80, you’ll need … Use the table below to calculate how many bulbs you need per square feet. For example, if the room is 10 feet wide and 10 feet long, the room square footage will be 100 square feet. Much smaller flowers, only one inch across and a unique clear blue, are held one foot or more high on the heirloom blue globe onion (Allium caeruleum). Divide the total number of lumens by the efficiency of the bulb and round up to figure out the number of bulbs you need: n₁ = 1080 / 800 => 2 bulbs. NOTE: Please choose proper unit of your room area to help us count led lights (Lux and watts calculation) required per square foot/meter/inch. You will need two light bulbs (800 lumens each) to illuminate the whole kitchen and additional 7 LED lights (200 lumens each) above the counter. Most famous in the group of over 300 species are the tall purple globes that rise in late spring and amaze everybody. From small alliums in a rainbow of colors that make a great show in the front of the garden to exotic-looking taller ones that look like fireworks. Determine the Foot Candles by Room Type or Room Purpose. This group of flower bulbs gets more popular every year, and no wonder. When to Plant: Alliums that grow from bulbs are planted in the fall, after the first frost and before the ground freezes. Perhaps the tallest of the ornamental onions, Allium giganteum is a striking and bold addition to the garden with its star-shaped, tiny lilac-purple flowers forming a 5-6 in. Herbaceous alliums (such as Allium tuberosum and Allium Millenium) have fiberous roots like other perennials. If you’re one of the many gardeners who have fallen in love with alliums, our new bloom time chart could get you into some trouble. VARIETY : PLANTING DENSITY PER M2: Special Bulbs: Sun: Partial shade: Shade: Self-propagating: Combination planting: For colour effect: Allium karataviense: x : 15 n₂ = 1291 / 200 => 7 bulbs. Similar is ‘Spider’, only blooming mid-summer with deeper violet flowers, and the less hardy (USDA zone 5 minimum) Stars of Persia. This Lumen calculation formula is using predefined standard LUX Levels required for different room types. Multilply your square feet (sq ft) by the number of bulbs (# of bulbs) for your total number of bulbs needed. This makes it easy to see at a glance which types you have and which ones still... From wall rise in late spring and amaze everybody Purple Sensation Allium can easily fit into planting! 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