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Forcing Tender Bulbs in Pebbles & Water

BY Kevin Lee Jacobs | September 30, 2009 19 Comments

Last updated on December 2nd, 2011


Bulbs which can be forced into early bloom on a diet of water alone are a boon to all of us who want flowers for the house, but without the fuss and mess of soil mixtures, fertilizers, and pots with drainage holes. Almost any bulb can be grown in water (with pebbles beneath them to support roots), but the fastest to bloom are the tender kinds of Narcissi. For these don’t require a chilling period in order to sprout their fragrant bouquets at the wrong time of the year.

Paperwhites. I order mine from a bulb specialist, because the only varieties I can find locally are ‘Ziva’ and ‘Ariel.’ These two emit a musky scent that some of us love, but others find cloying. You might enjoy, as I do, the lightly-scented ‘Inball’ (above), which boasts more flowers per stem than all other Paperwhites, or ‘Winter Sun,’ remarkable for its gently-perfumed, pale-white flowers and bright yellow cup. All varieties, musky or not, make beautiful adornment for tabletops and mantels. I can’t imagine decorating for Thanksgiving and Christmas without them.

Chinese Sacred Lily, Grand Soleil d’Or. Also worth forcing into early, softly-scented bloom are the creamy white and yellow Chinese Sacred Lilies (above), and the orangey-yellow Grand Soleil d’Or daffodil. I time these for January and February displays. They make a pleasing yellow-and-green harmony for the window garden, in combination with pink and purple African violets.

Containers, Culture, and the “Gin-Trick”. You can grow narcissus in all kinds of decorative bowls and vases, and even kitchen items too, like coffee mugs (one bulb per mug) and Bundt pans. The important thing is that containers be deep enough, preferably 4-5 inches, to permit enough pebbles to be spread under and around the bulbs, and thus give support to the big root masses which develop.

To plant, fill a container 2/3 full with polished aquarium pebbles or some other clean aggregate, and then arrange the bulbs on top. Odd groupings of three, five, or seven bulbs make the most attractive displays.

Next, add enough water to reach the base of the bulbs. Then sprinkle another inch or two of pebbles between and around the bulbs, until only their pointed tops are exposed.


To keep both Paperwhites and Chinese Sacred Lilies from growing too tall (unstaked, you can depend on them to collapse in a miserable heap just as their flowers open), I give them a shot of gin: After planting, the bulbs are set in a light or sunny window for exactly one week. Then the water is poured off, and replaced with a mild cocktail of five parts water to one part gin (or vodka — any liquor that is 40-proof will do the trick).

This booze-and-water-business really works. The plants grow to half their normal size, but with flowers just as large and fragrant as usual. As evaporation occurs, I always replenish the bulbs with the same gin-mixture, to a level that just touches the base of the bulbs.

When will they bloom? Well, that all depends on when your planting is made. The nearer to the bulb’s natural bloom-time in spring, the faster the flowers develop. Consequently, if you want them for Thanksgiving, as I do, plant your bulbs the first week in October. For Christmas flowers, plant in mid-November. January and February arrangements generally take 5 weeks; after March, fragrant perfection occurs in only 21 days. (I discard my bulbs once their flowering days are over. They are tender-types not hardy in my zone 5-b garden.)

Why not force a few narcissus bulbs for your own winter enjoyment? Or, plant a few bowls of bulbs for friends. They make wonderful Thanksgiving, Christmas, and New Year’s gifts. Anyway, I enjoy receiving them!

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Related Posts:
How To Design a Window Garden
Seven Ways to Beautiful Houseplants
Minor Bulbs for a Bright Winter
Hardy Bulbs for Winter Windows

What To Do in October
The Hardy Boys: Flowering Bulbs for Winter Windows

Comments

  1. 1

    Andrew Thompson says

    September 30, 2009 at 7:31 pm

    You mean you can keep them small…with AL-CO-HOL? Great tip!

  2. 2

    Holly says

    October 1, 2009 at 1:49 pm

    Wow. It's hard to believe that bulb-forcing season is here already. I'd better get shopping…

  3. 3

    Gregory says

    October 1, 2009 at 2:08 pm

    Dare I ask – how did you discover the “gin trick?”

  4. 4

    Kevin Lee Jacobs says

    October 1, 2009 at 2:37 pm

    Gregory – It was the Flower Bulb Research Program at Cornell that discovered the gin trick. How THEY stumbled upon it is something I'd like to know!

  5. 5

    Gardenlady says

    October 1, 2009 at 3:33 pm

    I'll have to force some Chinese Sacred Lilies. How nice to have that touch of springtime yellow in the house during gray days of January!

  6. 6

    Judy says

    October 1, 2009 at 3:58 pm

    You were the one who turned me on to paperwhites and every holiday season I long to be near them! My only question is do they prefer their gin shaken or stirred?

  7. 7

    Kevin Lee Jacobs says

    October 1, 2009 at 4:21 pm

    Judy – Why, gin should always be gently stirred! I've heard that it bruises easily.

  8. 8

    Emily says

    October 1, 2009 at 6:26 pm

    Kevin, will the alcohol trick work for other bulbs, too?

  9. 9

    Carol says

    October 1, 2009 at 11:49 pm

    This sounds like a good way to introduce children to gardening, since the wait from planting to flower is not long.

  10. 10

    Kevin Lee Jacobs says

    October 2, 2009 at 2:10 am

    Emily – the Flower Bulb Research people at Cornell tested alcohol exclusively on paperwhites, I believe. Thus it is only the paperwhites, including the Chinese Sacred Lily, that I have plied with gin.

    Carol – I couldn't agree more. Children are often fascinated with fast and easy gardening projects like bulb-forcing.

  11. 11

    Samantha says

    October 2, 2009 at 2:15 pm

    I think that bowls of paperwhites or other tender bulbs would make terrific, personalized Christmas presents. And just think, no trip to the mall!

  12. 12

    Kevin Lee Jacobs says

    October 2, 2009 at 5:01 pm

    Samantha – I couldn't agree more. Personally, I don't want shirts and ties…just plants!

  13. 13

    Gregory says

    October 6, 2009 at 3:18 pm

    Agreed! For Christmas, give me a pot of paperwhites…daffodils…hyacinths…anything that smells and looks good, and I'll be very happy indeed!

  14. 14

    Andrew Thompson says

    October 14, 2009 at 11:28 pm

    Kevin, have you ever tried forcing freesia bulbs? Do you think they would grow in pebbles and water?

  15. 15

    Kevin Lee Jacobs says

    October 15, 2009 at 10:51 am

    Andrew – I grow freesia every winter. The bulbs are easy because they don't require a cold period. I grow the bulbs in soil, because it is easier to arrange for staking (freesia definitely needs staking of some kind). I have never tried them in pebbles and water.

  16. 16

    Nelly says

    August 11, 2014 at 3:23 am

    It’s rsally a nice and helpful piece of information. I’m happy that you shared this useful info with us.
    Please keep us informed like this. Thank you for sharing.

  17. 17

    RuthWells says

    December 2, 2014 at 7:34 pm

    I adore paperwhites, and started a flotilla of them in water 3 weeks ago, hoping to have blooms at Christmas. Well, the buggers are blooming now! Is there anything I can do to lengthen the bloom time?

  18. 18

    Kevin Lee Jacobs says

    December 2, 2014 at 7:54 pm

    Hi Ruth – Sounds like you have some overly-enthusiastic bulbs! If you can find a cool but light (not sunny) spot for them, the flowers will last longer.

  19. 19

    RuthWells says

    December 2, 2014 at 10:03 pm

    Thank you for the quick reply, Kevin. I may put a few containers in my garage, then, and see how they fare. Am resisting the urge to simply go buy more bulbs….

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