2017 crop continues to do very well under the artificial lights. Since last time the weather remained very warm outside with high humidity for this time of year. The plants were watered for the first time in two weeks this weekend. All were watered from above at least 20 ml each and some were soaked from below as well. All got about 5ml of a feeding mix with a source of magnesium. About 10 ml of the same feeding concentrate as in the past and 1 g of MgSO4 were mixed with water in a 250ml flask.
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| Right side of tray. Feb 26, 2017 |
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| Left side of tray. Feb 26, 2017 |
Some of the plants developed extra long needles. About a quarter of all sequoias have 1 inch or slightly longer needles. Here is a comparison of a "normal" sequoia with the monster needle sequoia:
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| #395 0.5 inch needles. February 26, 2017 |
#395 is a normally developing sequoia with a fairly high needle density, average height and needle length.
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| #397 1 inch long needles. February 26, 2017 |
#397 on the other hand has lower density of the needles, a little above average height and one inch long needles.
The previous leader #394 started developing brown tips on the needles No other strong sequoias show this condition:
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| #394 with brown tips. February 26, 2017 |
The reason why I said that it's previous leader is because several other samples have as much of a volume as #394 but without the brown tips. Also, one sample, #354 has grown above the rest, standing at just above 2 inches.
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| #354 at 2 inches. February 26, 2017 |
But the winners of the vertical growth are not sequoias, it's the Doug-fir, tallest ones standing at 4 inches:
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| Doug-fir at about 3 months. February 26, 2017 |
Back to the sequoias. #303 is currently at 1.75", being one of the most average samples on the patch:
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| #303 at 1.75". February 26, 2017 |
The patch is being finally cleared of the hopeless failing sequoias that were named here before. None made it.
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| Failed sequoias 313, 319, 345, 347 February 26, 2017 |
I am very interested in what soil mix and what type of grow light are you using. Is that a T5 6500 K system?
ReplyDeleteYour results are spectacular.
Hi again.
ReplyDeleteI'd be more than grateful if you'll let me know the soil mix and the light system you are using.
Many thanks.
It's peat moss mixed with perlite in 10:1 ratio. I avoid any organics for the first 3 months. Then I use liquid fertilizer in tiny doses every month.
ReplyDeleteI use T5 grow lights positioned about 2 feet above seedlings.
Temperature is about 68-70.