Houseleek, Hen-and-Chickens, Old Man and Woman, Roof House Leek
Sempervivumtectorum 'Nigrum'

<h1>Houseleek, Hen-and-Chickens, Old Man and Woman, Roof House Leek<br><i>Sempervivum</i><i>tectorum</i> 'Nigrum'</h1>

<table border=0 width="100%">
    <tr>
        <td valign="top">
                            <b>Family: Crassulaceae</b>
                                    (krass-yoo-LAY-see-ee)<br>
                                                        <b>Genus: <i>Sempervivum</i></b>
                                    (sem-per-VEE-vum)<br>
                                        
                            <b>Species: <i>tectorum</i></b>
                                    (tek-TOR-um)<br>
                            
                            <b>Cultivar: Nigrum</b><br>
            
                        
                        
                        
            
                        
                        
                        
            
            <P>
</table>

    <table border="0" width="100%">
        <tr>
            <td valign="top">                
                                 
                       
                    <P><B>Category</B><BR>
                     
                        Alpines and Rock Gardens<BR>
                     
                        Cactus and Succulents<BR>
                                     
                       
                    <P><B>Water Requirements</B><BR>
                     
                        Drought-tolerant; suitable for xeriscaping<BR>
                                     
                       
                    <P><B>Sun Exposure</B><BR>
                     
                        Full Sun<BR>
                                     
                       
                    <P><B>Foliage</B><BR>
                     
                        Grown for foliage<BR>
                     
                        Evergreen<BR>
                     
                        Provides Winter Interest<BR>
                                     
                       
                    <P><B>Foliage Color</B><BR>
                     
                        <BR>
                                     
                       
                    <P><B>Height</B><BR>
                     
                        under 6 in. (15 cm)<BR>
                                     
                       
                    <P><B>Spacing</B><BR>
                     
                        3-6 in. (7-15 cm)<BR>
                     
                        6-9 in. (15-22 cm)<BR>
                     
                        9-12 in. (22-30 cm)<BR>
                                     
                       
                    <P><B>Hardiness</B><BR>
                     
                        USDA Zone 3b: to -37.2 °C (-35 °F)<BR>
                     
                        USDA Zone 4a: to -34.4 °C (-30 °F)<BR>
                     
                        USDA Zone 4b: to -31.6 °C (-25 °F)<BR>
                     
                        USDA Zone 5a: to -28.8 °C (-20 °F)<BR>
                     
                        USDA Zone 5b: to -26.1 °C (-15 °F)<BR>
                     
                        USDA Zone 6a: to -23.3 °C (-10 °F)<BR>
                     
                        USDA Zone 6b: to -20.5 °C (-5 °F)<BR>
                     
                        USDA Zone 7a: to -17.7 °C (0 °F)<BR>
                     
                        USDA Zone 7b: to -14.9 °C (5 °F)<BR>
                     
                        USDA Zone 8a: to -12.2 °C (10 °F)<BR>
                     
                        USDA Zone 8b: to -9.4 °C (15 °F)<BR>
                     
                        USDA Zone 9a: to -6.6 °C (20 °F)<BR>
                     
                        USDA Zone 9b: to -3.8 °C (25 °F)<BR>
                     
                        USDA Zone 10a: to -1.1 °C (30 °F)<BR>
                     
                        USDA Zone 10b: to 1.7 °C (35 °F)<BR>
                                     
                                             
                            </td> <td valign="top">
                                                                           
                    <P><B>Where to Grow</B><BR>
                     
                        Can be grown as an annual<BR>
                                     
                                                                   
                    <P><B>Danger</B><BR>
                     
                        <BR>
                                     
                                                                   
                    <P><B>Bloom Color</B><BR>
                     
                        Pale Pink<BR>
                     
                        Pink<BR>
                     
                        White/Near White<BR>
                                     
                                                                   
                    <P><B>Bloom Characteristics</B><BR>
                     
                        <BR>
                                     
                                                                   
                    <P><B>Bloom Size</B><BR>
                     
                        <BR>
                                     
                                                                   
                    <P><B>Bloom Time</B><BR>
                     
                        Late Spring/Early Summer<BR>
                     
                        Mid Summer<BR>
                                     
                                                                   
                    <P><B>Other details</B><BR>
                     
                        <BR>
                                     
                                                                   
                    <P><B>Soil pH requirements</B><BR>
                     
                        6.6 to 7.5 (neutral)<BR>
                                     
                                                                   
                    <P><B>Patent Information</B><BR>
                     
                        <BR>
                                     
                                                                   
                    <P><B>Propagation Methods</B><BR>
                     
                        By dividing rhizomes, tubers, corms or bulbs (including offsets)<BR>
                                     
                                                                   
                    <P><B>Seed Collecting</B><BR>
                     
                        <BR>
                                                    
            </td>
        </tr>
    </table>