Sprenger's Asparagus
Asparagus densiflorus 'Sprengeri' — the "fern" that is actually an asparagus.
Asparagus densiflorus ‘Sprengeri’
Origin
Section titled “Origin”Sold as a fern but a true Asparagus — its “needles” are flattened stems doing a leaf’s job. From coastal South Africa, mild and frost-free with unreliable rain; the mat of white water-storing tubers is its answer.
Location
Section titled “Location”Bright indirect light to gentle morning sun — harsh sun yellows it, deep shade thins it out. No frost. Hang it high: the red berries are mildly toxic and the stems carry small hidden thorns.
Watering
Section titled “Watering”Moderately moist every few days; the tubers forgive a missed round. Balanced liquid feed at half strength every four weeks, March to September.
Pruning
Section titled “Pruning”Cut yellowed or bald stems out at the base in March. Fresh fronds push from below, not from trimmed tips, so there is no shaping to do.
Repotting
Section titled “Repotting”Every two years in early spring; the tuberous roots bulge or crack a tight pot. Instead of sizing up forever, saw the tuber mass in half and return one half to the same pot — the tubers carry the recovery rations.